Beginner Crochet Triceratops Keychain Pattern – Amigurumi Dino Tutorial (PDF)

If you’ve ever wanted to make an adorable miniature dinosaur with your own two hands, you are in exactly the right place. This beginner crochet triceratops keychain pattern walks you through every stitch, every round, and every finishing detail so that by the end of this tutorial, you’ll have a tiny, stuffed, three-horned dino dangling from your keys, bag, or backpack. Whether you’re brand new to amigurumi or you’ve made a few small projects before and want to try something with a little more personality, this pattern is designed to be approachable, fun, and completely achievable in a single sitting.

Let’s talk about why the triceratops is such a perfect amigurumi subject. Unlike some dinosaurs that are mostly a long oval body with tiny arms, the triceratops has a signature look — that big frilled head, three iconic horns, and a sturdy, compact body. Those distinctive features translate beautifully into crochet. The frill and horns give you something to sink your teeth into creatively, and the result is a keychain that people actually stop and ask about. “Did you make that yourself?” Yes. Yes, you did.

This tutorial is written in US crochet terminology. A downloadable PDF version of this pattern is available so you can print it, mark it up, and take it with you anywhere you crochet.

What You’ll Need Before You Start

Getting your supplies together before you begin will make the whole process smoother. Here’s what you’ll need for this triceratops keychain pattern.

Yarn: A small amount of worsted weight yarn (size 4) in your main body color. Classic choices include forest green, sage, teal, or even a fun coral or lavender if you want a fantasy dino. You’ll also want a small amount of a contrasting color for the belly and the frill, and a tiny bit of off-white or tan for the horns. Because this is a keychain, you won’t use much — leftover yarn scraps work perfectly.

Hook: A 3.5mm or 3.75mm crochet hook. Using a slightly smaller hook than the yarn label recommends creates a tighter fabric with fewer gaps, which means your stuffing won’t poke through and your finished piece will hold its shape beautifully.

Stuffing: A small pinch of polyester fiberfill is all you need. Since this is a keychain, you want it to be lightweight, so err on the side of less stuffing rather than more.

Safety eyes: 6mm black safety eyes work well for a keychain-sized amigurumi. If you’re making this for a child under three, skip the safety eyes and embroider the eyes with black yarn instead.

Keychain hardware: A split ring or lobster clasp keychain ring, available at any craft store.

Tapestry needle: For weaving in ends and sewing pieces together.

Stitch markers: Optional but helpful, especially for beginners. A simple piece of scrap yarn in a different color works perfectly to mark the beginning of each round.

Understanding Amigurumi Basics

Before diving into the pattern itself, let’s cover a few foundational concepts that will make this project much easier.

Amigurumi is the Japanese art of crocheting or knitting small stuffed animals and figures. The word combines the Japanese words for “knitted” and “stuffed doll.” The technique almost always uses single crochet stitches worked in continuous rounds rather than joined rounds, which creates that smooth, seamless spiral look you see on professional amigurumi pieces.

The magic ring (also called a magic circle) is how nearly every amigurumi piece begins. It lets you start crocheting in the round with a closeable center hole, which means no unsightly gap at the top of your piece. If you’re not comfortable with a magic ring yet, you can chain 2 and work your first round of single crochets into the second chain from the hook, then pull the tail to close the gap. It’s a slightly less tidy start, but it works fine for beginners.

Increases in amigurumi are made by working two single crochets into the same stitch. Decreases are typically made using an invisible decrease: insert your hook into the front loops only of the next two stitches and complete the single crochet as usual. The invisible decrease creates a much neater finish than a standard single crochet two together.

Because you work in continuous rounds, you need a way to track where each round begins and ends. Place a stitch marker in the first stitch of each new round and move it up as you go. This is one of those habits that will save you from having to count and recount constantly.

Abbreviations Used in This Pattern

MR — magic ring
ch — chain
sl st — slip stitch
sc — single crochet
inc — increase (2 sc in the same stitch)
dec — invisible decrease (sc2tog through front loops)
BLO — back loop only
FLO — front loop only
st — stitch
sts — stitches
rnd — round
( ) — work the stitches inside the parentheses the number of times indicated

Pattern: Beginner Crochet Triceratops Keychain

This pattern creates a triceratops that measures approximately 3 to 3.5 inches tall when finished, making it an ideal keychain size.

Part One: The Body

Start with your main body color.

Rnd 1: MR, 6 sc into the ring. (6 sts)
Rnd 2: Inc in each st around. (12 sts)
Rnd 3: (Sc 1, inc) repeat around. (18 sts)
Rnd 4: (Sc 2, inc) repeat around. (24 sts)
Rnd 5–9: Sc in each st around. (24 sts) — This is five rounds of even single crochet with no increases or decreases.
Rnd 10: (Sc 2, dec) repeat around. (18 sts)

At this point, insert your safety eyes between rounds 6 and 7, approximately 4 to 5 stitches apart. This is a good moment to also stuff the body lightly with fiberfill.

Rnd 11: (Sc 1, dec) repeat around. (12 sts)
Rnd 12: Dec around. (6 sts)

Fasten off, leaving a long tail. Use your tapestry needle to close the remaining 6 stitches by threading the tail through the front loops of each stitch and pulling tight. Weave in the end securely.

Part Two: The Head

The head is worked separately and sewn onto the body. Switch to your main color.

Rnd 1: MR, 6 sc. (6 sts)
Rnd 2: Inc in each st around. (12 sts)
Rnd 3: (Sc 1, inc) repeat around. (18 sts)
Rnd 4: (Sc 2, inc) repeat around. (24 sts)
Rnd 5–7: Sc in each st around. (24 sts)
Rnd 8: (Sc 2, dec) repeat around. (18 sts)
Rnd 9: (Sc 1, dec) repeat around. (12 sts)

Do not close. Stuff the head firmly — the head should feel a little more solid than the body because the horns and frill will attach to it.

Set aside and prepare the frill before closing.

Part Three: The Neck Frill

The frill is one of the most iconic parts of a triceratops and it’s surprisingly simple to make. Switch to your contrasting color.

Ch 14. Turn.
Row 1: Sc in the second ch from hook, sc in each ch across. (13 sts)
Row 2: Ch 1, turn. (Sc 1, inc) repeat across, sc in last stitch. (approximately 19 sts)
Row 3: Ch 1, turn. Sc in each st across.

Fasten off, leaving a long tail for sewing.

The frill should form a slightly curved, fan-shaped piece. If you want a scalloped edge for extra detail, you can work a simple edging along the top of the frill: join your contrasting color at one end and work (sl st, ch 2, sl st) into every other stitch across the top edge. This creates little scallops that look like the bony ornamentation on a real triceratops frill. It’s an optional detail, but it makes the finished keychain look noticeably more polished.

Pin the frill to the back opening of the head piece before closing the head. Sew the straight bottom edge of the frill evenly along the last open round of the head, working it all the way around the back half of the opening. Once the frill is attached, stuff the head a little more if needed and close the head opening using the same gather method described for the body.

Part Four: The Horns

Triceratops means “three-horned face” and all three horns need to make an appearance. The two larger brow horns and the smaller nose horn are each made the same way, just with slightly different stitch counts.

For each large brow horn (make 2):

Rnd 1: MR, 4 sc. (4 sts)
Rnd 2: (Sc 1, inc) twice. (6 sts)
Rnd 3: Sc in each st around. (6 sts)

Fasten off, leaving a long tail. Do not stuff the horns — they’ll hold their pointed shape on their own.

For the small nose horn (make 1):

Rnd 1: MR, 4 sc. (4 sts)
Rnd 2: Sc in each st around. (4 sts)

Fasten off, leaving a long tail.

Pin your three horns onto the head before sewing. The two brow horns sit above the eyes, approximately one stitch apart from each other. The nose horn sits at the very front center of the head, slightly lower than the brow horns. Take your time positioning them because symmetry here makes a big difference in how the finished piece looks. Use pins or stitch markers to hold them in place while you evaluate the placement, then sew each horn down securely, making sure to hide the tails inside the head.

Part Five: The Legs (make 4)

Rnd 1: MR, 6 sc. (6 sts)
Rnd 2: Inc in each st around. (12 sts)
Rnd 3: Working in BLO, sc in each st around. (12 sts) — This creates a little ridge at the base that looks like the bottom of a foot.
Rnd 4–6: Sc in each st around. (12 sts)

Fasten off, leaving a long tail. Do not stuff the legs for a keychain — they’ll be flat and floppy in a charming way, and it keeps the weight down.

Part Six: The Tail

Ch 8. Turn.
Rnd 1: Sc in the second ch from the hook and in each ch across. (7 sts)
Rnd 2: Ch 1, turn. Dec, sc in each remaining st. (6 sts)
Rnd 3: Ch 1, turn. Dec, sc in each remaining st. (5 sts)
Rnd 4: Ch 1, turn. Dec, sc in each remaining st. (4 sts)

Fasten off, leaving a long tail for sewing. The tail will be a small, tapered flat piece. You can leave it flat for a low-profile keychain, or if you prefer a rounder tail, you can work it in rounds instead: start with a magic ring of 6, work 2–3 even rounds, then decrease down to a point.

Assembly

Assembly is where the magic happens, and it’s also where beginners tend to feel the most uncertain. Take your time here. There’s no rush.

Begin by attaching the head to the body. Hold the head against the body and find the position that looks most natural — for a triceratops, the head typically sits slightly forward so the snout extends past the body. Sew the head down using your tapestry needle and the long tail left on the head, working all the way around the connection point at least twice for security.

Next, attach the four legs. The front two legs sit slightly forward on the body, and the back two sit toward the rear. Flatten each leg slightly before sewing so it splays outward naturally, the way a real triceratops walks low to the ground. Sew each leg on securely.

Attach the tail to the back center of the body, letting it angle slightly upward or curve to one side depending on your preference.

Finally, attach your keychain ring. The best placement is at the very top of the body, directly between the head attachment and the back of the neck. Use a small loop of your main color yarn to create a secure attachment point: fold a 6-inch piece of yarn in half, insert both ends into the top of the body using your tapestry needle, thread both ends through the keychain ring, then tie them tightly inside the body. This keeps the hardware hidden and creates a sturdy attachment.

Finishing Touches and Customization Ideas

Now that your triceratops is assembled, step back and look at it. Does it need anything extra? Here are some ideas for personalizing your finished piece.

If you want to add more dimension to the face, embroider a small smile with a single straight stitch or backstitch using black yarn. You can also add a tiny blush on each cheek using a pink colored pencil or chalk pastel rubbed very lightly onto the yarn fibers — this gives amigurumi that irresistible rosy look.

For a different color palette, try making the frill a bright contrasting color like coral, yellow, or deep purple to really make it pop. Some crafters like to add small dots or spots to the body using surface slip stitches in a second color, which mimics the patterned skin of some reptiles.

If you want to make this as a gift for a young child rather than a keychain, simply skip the keychain hardware and make the legs a bit longer by adding two or three extra rounds. The result is a small plush toy rather than an accessory.

You can also make a whole dinosaur collection using the same basic body and head structure from this pattern. Swap the frill and horns for spines and you have a stegosaurus. Extend the neck significantly and reduce the head size for a brachiosaurus. The possibilities are genuinely endless once you understand how the basic shapes work.

Tips for Beginners

Tension is the single biggest factor in how your finished amigurumi looks. If your stitches are too loose, the stuffing will show through and the piece will feel floppy. If your stitches are too tight, your hands will tire out and the piece will be rigid. Aim for a firm, even tension where the stitches are snug but your hook moves through them smoothly.

Count your stitches at the end of every single round, especially during the increase and decrease rounds. One missed stitch or one extra stitch can throw off your shaping over the next several rounds, and it’s much easier to fix a mistake right away than after you’ve worked five more rounds on top of it.

Don’t be discouraged if your first attempt doesn’t look perfect. Even experienced amigurumi makers keep their first projects as sentimental reminders of where they started. The more keychains you make, the faster and neater your work will become. Many beginners find that making the same pattern two or three times is the fastest way to improve, because each repetition builds muscle memory and confidence.

Finally, enjoy the process. One of the best things about small amigurumi projects like this triceratops keychain is that you can take them anywhere and finish them in a single afternoon. Bring your hook and yarn to a coffee shop, work on it during your commute, or sit with it on a rainy weekend afternoon. The finished piece will be something uniquely yours, and there’s a real satisfaction in looking at a handmade creature and knowing that every stitch came from your own hands.

Downloading the PDF Pattern

A printable PDF version of this beginner crochet triceratops keychain pattern is available for download. The PDF includes the complete pattern written out in full, a materials list, an abbreviations guide, and step-by-step assembly notes. Having it in print means you can mark up your copy, check off each round as you complete it, and never lose your place even if you set the project down for a few days.

Whether this is your very first amigurumi or you’re adding to a growing collection of tiny crocheted creatures, this triceratops keychain is