I will be honest with you: slugs were never on my list of creatures I expected to fall for, and then I made my first one and completely understood the fuss. There is something irresistible about a plump little banana slug in sunny yellow, or a frilly sea bunny with its funny ear-like rhinophores, all made from a hook and a few yards of yarn. This roundup of crochet slug ideas gathers the very best of both worlds — the garden slugs that crawl through leaf litter and the jewel-bright sea slugs that drift along the ocean floor — and every single pattern here is genuinely free, with the designer properly credited.
Inside you will find banana slugs in three different styles, no-sew snuggle slugs in three sizes, a wiggly articulated fidget slug, a love slug with heart-shaped eyes, a whole parade of sea bunnies, a corner-to-corner sea slug block, a classroom-friendly school project, and two different leaf sheep, those tiny green sea slugs that photosynthesize like plants. Some are written patterns with full text on the designer's blog, some are free downloads, and two are video tutorials, clearly labelled as such. Whether you want a quick evening make, a stash-busting toy, or a showpiece for your ocean-animal shelf, your next slug is waiting below.
1. Mervin the Banana Slug, a Pacific Northwest Classic
We are starting with the banana slug that made me love this whole theme: Mervin, from Stephanie Pokorny at Crochetverse, a cheerful yellow fellow with long eye stalks and a face you sew or paint on with the sweetest little smile. The full pattern is published free on her blog, and it walks you through the plump banana-shaped body, the white fingering-weight eyes, and the pink stitched mouth, with the option of adding a few strands of yarn at the narrow end as a slime trail. He is a wonderful stash-buster in any yellow you have to hand, and he looks just as charming in a bright goldenrod as in a soft buttery shade. Make him for a nature-loving friend, perch him on a bookshelf, and watch everyone ask where he came from.
Pattern: Mervin the Banana Slug by Stephanie Pokorny at Crochetverse — Get the free pattern
2. Delightful Doug, the Plump Banana Slug
Doug is the second banana slug on the list and a completely different design, so there is no sense of repetition here: Cassandra Rendon at Handcrafting a Life gives him a rounder, plumper body with sweet speckled markings and a friendly, slightly surprised face. The complete pattern is free on her blog, written in clear rounds that a confident beginner can follow without any fiddly shaping tricks. I love him in classic banana yellow with brown speckles, but he would be adorable in a soft green or even a pastel pink for a nursery shelf. He is a quick, satisfying make, and his chunky shape means he sits up nicely on his own without any wire or support.
Pattern: Delightful Doug the Banana Slug by Cassandra Rendon at Handcrafting a Life — Get the free pattern
3. A Sunny Banana Slug From Bippy Buddies
The Bippy Buddies banana slug is the simplest of the three banana slugs here, and sometimes simple is exactly right: a smooth single-crochet body in bright yellow, worked in easy rounds, with eye stalks and a sweet face that you can embroider in an evening. The full pattern is free on the designer's blog, and it is a lovely first amigurumi if you have never made a toy before, because there are no complicated joins or colour changes to trip you up. Try him in a variegated yellow yarn for a mottled, realistic banana look, or keep him solid and bold for a toy-box pop of colour. He is small enough to tuck into a gift bag and cheerful enough to steal the show.
Pattern: Banana Slug by Bippy Buddies — Get the free pattern
4. Snuggle Slugs in Three Sizes, No Sewing Required
If sewing pieces together is the part of amigurumi you dread, Somerr of Stitch Sister Co has your back: her Snuggle Slugs, shared as a guest design on A Crafty Concept, are worked with almost no sewing at all, and they come in three sizes so you can make a whole family. The Hug size is published in full on the page, worked in soft sherpa yarn with an 8 mm hook for the body and chenille with a 7 mm hook for the head, while the Pocket and Jumbo sizes are available in the designer's PDF. The result is a gloriously squishy, velvety slug with tall eye stalks and an embroidered smile, and the chunky yarn means even the biggest size works up fast. Make one in a dreamy pastel for a baby's room shelf, or go bold with a bright coral for your own desk.
Pattern: Snuggle Slugs by Somerr of Stitch Sister Co at A Crafty Concept — Get the free pattern
5. A Teeny-Tiny Little Slug for Scrap Yarn
This little slug is the quickest make on the entire list, and proof that a handful of scrap yarn can become something delightful in under an hour. Worked in worsted weight yarn with a size G (4 mm) hook, it starts from a tiny chain and grows into a pocket-sized slug with looped antennae and thread feelers that you trim to whatever length you like. The full pattern is published free on All Crochet Ideas, where no individual designer is named, so I am crediting the site that publishes the complete text. It is the perfect use for those last few yards of a skein, and a basket of them in rainbow colours makes the sweetest party favour or craft-fair filler. Sometimes the smallest projects bring the biggest smiles.
Pattern: Little Slug by All Crochet Ideas — Get the free pattern
6. The Wiggly Articulated Fidget Slug (Video Tutorial)
Here is the slug for fidgeters: Complicated Knots' articulated fidget slug is made from a chain of plump segments, each worked with front-post and back-post stitches for a ridged, bendable texture, then threaded together so the whole creature wiggles and curls in your hands. This one is a free video tutorial on the designer's YouTube channel rather than a written pattern, so you can watch every segment and the clever assembly step by step, and the designer keeps most of her patterns free on YouTube. It is surprisingly easy for how impressive it looks, and it makes a brilliant stress toy, classroom fidget, or gift for anyone who likes to keep their hands busy. Make it in rainbow segments for maximum joy, or in a single woodland green for a realistic garden crawler.
Pattern: Fidget Slug by Complicated Knots (free video tutorial) — Get the free pattern
7. A Love Slug with Heart-Shaped Eyes
If your heart needs a hug in crochet form, this little love slug is the sweetest make on the list. Worked in soft pink, red, and black yarn with a Size E hook, it starts from a simple chain and grows through gentle oval increases into a plump little body, finished with a pretty shell-stitch row and a red underside sewn on as you stuff. Two tiny pink eyetennas topped with heart-shaped safety eyes give it the most lovable face, and a quick embroidered smile finishes the whole thing off. It is an easy, relaxing project that uses only basic stitches, and it makes a wonderful gift for a friend who could use a little extra love. Make one in classic Valentine colours, or try a whole basket in rainbow shades for party favours that everyone will want to take home.
Pattern: The Love Slug by All Crochet Ideas — Get the free pattern
8. Sally the Rainbow Sea Slug
Moving from the garden to the ocean, Sally the Sea Slug by Carolyne Brodie of Sweet Oddity Art is a rainbow-bright nudibranch with a ruffled mantle edge and a sweet, smiling face. The pattern is a free download on LoveCrafts, where it is listed under the designer's own name, and it works up at about ten inches with a D hook, which makes it a lovely huggable size for a child's ocean-themed room. I am crediting the LoveCrafts designer page here, because the same text also circulates on mirror sites that do not credit her, and designers deserve the link. Work her in a full rainbow of scraps for a reef-bright showpiece, or in soft pastels for a gentler, dreamier sea creature.
Pattern: Sally the Sea Slug by Carolyne Brodie at Sweet Oddity Art — Get the free pattern
9. A Beginner-Friendly Sea Slug With Ruffles
Reddrose's little sea slug on Ribblr is the one I would hand to a brand-new crocheter who wants their first ocean animal: it is rated beginner, it is low-sew, and it comes with a few variations so you can play with the ruffles, the tail, and the little ear-like appendages. The pattern is free on Ribblr, where you read it as an interactive ePattern with a free account, and you can make it in literally any colour combination, from realistic ocean tones to a wild neon reef palette. Because the body is simple and the ruffles do all the decorating, it is a fast, forgiving make that still looks impressively detailed when it is finished. Make a whole reef of them in different colours and line them up on a shelf like a tiny aquarium.
Pattern: Sea Slug by reddrose — Get the free pattern
10. Nugget the Nudibranch, Low-Sew and Lovable
Nugget is a nugget indeed: a plump little nudibranch by CrochetwithCalli, free on Ribblr, with a low-sew construction that means you spend your time crocheting instead of stitching pieces together at the end. The design is a classic sea slug shape with a frilly mantle and sweet little rhinophores on top, and it works beautifully in a single bold colour with a contrasting ruffle, or in a soft speckled yarn for a more natural reef look. Like all Ribblr patterns, you follow it as an interactive ePattern with a free account, with row-by-row tracking that makes it hard to lose your place. Nugget is small, quick, and dangerously giftable, so consider yourself warned before you make just one.
Pattern: Nugget the Nudibranch/Sea Slug by CrochetwithCalli — Get the free pattern
11. Naiad the Nudibranch, a Classic Blog Pattern
Naiad is one of those older blog patterns that has quietly charmed crocheters for years: Emma at Emma's Craft Projects published the full text free on her blog, and it is a graceful nudibranch with a flowing, frilly body that shows off the wild shapes real sea slugs come in. The pattern is written in gentle, unhurried rounds, and it is a lovely choice if you enjoy a slightly more old-fashioned, blog-style pattern with room to make it your own. I picture Naiad in deep ocean blues and purples with a cream ruffle, like something glimpsed on a night dive, but she would be just as beautiful in a bright tropical orange. Pair her with a few of the other sea slugs here and you have the start of a whole crochet reef.
Pattern: Naiad the Nudibranch by Emma’s Craft Projects — Get the free pattern
12. A Sea Slug Block for Blankets and Wall Hangings
Not every slug has to be a toy: Alisha Ober's Sea Slug C2C Block is a charted square that you can work in corner-to-corner crochet, and the same chart works for mosaic, tapestry, or even cross stitch if that is your craft. The pattern is a free download on Ravelry, and the finished mini block comes out at roughly fourteen inches square, which is perfect for a blanket square, a wall hanging, or the front of a cushion. It is a brilliant way to celebrate sea slugs if you prefer flat crochet to amigurumi, and it uses up odds and ends beautifully, since the chart lets you plan your colours row by row. Make four of them and join them into a mini ocean throw, or frame a single block as cheerful bathroom art.
Pattern: Sea Slug C2C Block by Alisha Ober — Get the free pattern
13. Super Sea Slugs, a Classroom Project for Young Makers
This one is a little different, and I love it for that: the University of Plymouth published a complete sea slug crochet project as a school resource, aimed at upper-primary children, and the full twenty-three steps are right there on the university's page. It is designed to take one to two hours, it teaches slip knots, chains, and single crochet while children learn about real sea slugs, and the finished toy is made from two simple pieces sewn together with stuffing and chain antennae. I am crediting the university as the source, since this is an institutional teaching resource rather than a single designer's pattern. It is a wonderful first project to make with a child, and a lovely way to sneak a little marine biology into craft time.
Pattern: Super Sea Slugs by University of Plymouth — Get the free pattern
14. A Fluffy Sea Bunny, the Cutest Sea Slug of All
Now we come to the sea bunnies, and a quick note because it matters: sea bunnies are real sea slugs, the species Jorunna parva, so every sea bunny in this roundup genuinely belongs here, just wearing its cutest disguise. The first is by i crochet things, a free download on Ravelry, and it is a soft, round little bunny-slug with the species' famous fluffy-looking back and dark-tipped ear-like rhinophores. The pattern is rated free with a zero-price download, and it is a lovely weekend make in white or cream yarn with dark accents for the ears and tail. Set it beside a shell collection or on a bathroom shelf and it looks like it swam straight out of a tide pool.
Pattern: Sea Bunny Amigurumi by i crochet things — Get the free pattern
15. A Sea Bunny for Intermediate Makers
Crafty Stitch's sea bunny on Ribblr is the slightly more detailed cousin of the previous one, rated intermediate, with a beautifully rounded body and carefully shaped rhinophores that really sell the sea-bunny look. The pattern is free on Ribblr as an interactive ePattern with a free account, and the row-by-row tracking is a genuine help on a project where the shaping matters. I love this one in a soft white with grey-tipped ears, which is very close to the real animal's colouring, but a blush pink version is irresistibly cute for a nursery. If you have a few amigurumi makes under your belt and want a sea bunny with a little more polish, this is your pattern.
Pattern: Sea Bunny Amigurumi by Crafty Stitch — Get the free pattern
16. Judith's Fluffy Sea Bunny Slug
Judith of judithchenartworks makes her sea bunny slug in gloriously fluffy yarn, and the effect is pure cloud: a soft, round body with back tentacles and delicate antennae, worked with a 6 mm hook for the fluffy yarn and a 3 mm hook for the cotton details, with 12 mm craft eyes glued in place. The full pattern is free on her blog, and she includes lovely practical notes about which fluffy yarns she uses and how to feel your stitches when the fluff hides them, which is genuinely useful advice for anyone new to fluffy yarn. Make it in a white and salmon party mix like hers, or in any soft pastel, and be prepared for everyone to pick it up and squish it. Some toys are made to be admired; this one is made to be cuddled.
Pattern: Sea Bunny Slug by Judith of judithchenartworks — Get the free pattern
17. A Strawberry Sea Bunny With Leaf Ears
Danielle at Delinlea calls her creation a strawberry sea bunny, and the name is perfect: a fluffy white body, green leaf-shaped ears, a little flower tail, and a blush of pink marker on top that you brush out to keep the fluff soft. The complete pattern is free on her blog, worked with fluffy white yarn and DK yarn in light green, light yellow, and white, with a 2.5 mm hook for the DK parts and a 4.5 mm hook for the fluffy body, plus tiny 1 cm safety eyes. It is quick, it is sweet, and the strawberry twist makes it stand out from every other sea bunny on the shelf. Make a pair, one blushed pink and one left snowy white, and you have the prettiest little sea-slug duo imaginable.
Pattern: Strawberry Sea Bunny Amigurumi by Danielle at Delinlea — Get the free pattern
18. A Sea Bunny You Can Follow on Video (Video Tutorial)
If you learn best by watching, Dragon Sovail's sea bunny tutorial is a treat: a free video on the designer's YouTube channel that walks you through a fun little amigurumi sea bunny, also known as a sea slug, in American terminology, with the promise that a little basic stitch knowledge is all you need. This is a labelled video tutorial rather than a written pattern, so you can pause, rewind, and stitch along at your own pace, which is especially helpful for the shaping of the body and the placement of the ears. The finished bunny is small and sweet, ideal for a keychain, a desk friend, or the first piece in a sea-creature collection. Keep the yarn soft and the colours gentle, and enjoy making along with a designer who clearly loves this little animal.
Pattern: Amigurumi Sea Bunny / Sea Slug by Dragon Sovail (free video tutorial) — Get the free pattern
19. A Leaf Sheep, the Solar-Powered Sea Slug
The leaf sheep might be the most extraordinary creature on this list: a real sea slug, Costasiella kuroshimae, that eats algae and stores their chloroplasts in the leaf-like cerata on its back, so it can photosynthesize like a plant. Crafty Reason's crochet version captures it beautifully, with eight long leaves and four short leaves worked in crochet thread over craft wire so they stand up properly, a tiny body, and knotted thread eyes and cheeks, finishing at about an inch and a third long and two and a half inches tall. The full pattern text is free on the designer's blog, with a formatted PDF available to buy if you prefer a printable copy. It is fiddly, it is tiny, and it is utterly charming, so save it for a quiet afternoon and a good light.
Pattern: Leaf Sheep Sea Slug by Crafty Reason — Get the free pattern
20. Saelyss the Sea Sheep, a Leafy Showpiece
We are finishing with the grandest leaf sheep of all: Saelyss, by hooking_pages on Ribblr, an intermediate pattern with rows of leafy cerata that take real time but reward you with a stunning little sea slug that looks like a walking succulent. The pattern is free on Ribblr as an interactive ePattern with a free account, and the designer wisely warns against plush yarn here, since the small stitch counts and colour changes need a yarn you can count clearly. Plan a relaxed weekend for this one, choose greens with contrasting tips for the cerata, and add safety eyes or embroidered ones to finish the face. When it is done, Saelyss deserves pride of place on your shelf, preferably next to a real plant, where visitors will do a double take.
Pattern: Saelyss the Sea Sheep by hooking_pages — Get the free pattern
Conclusion
And that is twenty slugs, my friend — banana slugs from the garden, frilly nudibranchs from the reef, a whole warren of sea bunnies, two leaf sheep, a fidget toy, a love slug, a blanket block, and a classroom project, every one of them free and every one of them made by a designer who deserves the credit. If you are new to amigurumi, start with the little scrap-yarn slug or the beginner sea slug; if you want a weekend showpiece, Saelyss and the leaf sheep are calling your name; and if you need a gift that makes people laugh, the fidget slug or the love slug will do it every time.
Now tell me — are you team garden slug or team sea slug, and which of these twenty is going on your hook first? I read every comment, and I cannot wait to see your makes!
