Free Pattern: Viral Popping Frog Crochet Coaster (Flat Amigurumi)
Funny, cute, and a little bit macabre – if you’ve spent any time on Instagram Reels, TikTok, or Pinterest lately, you’ve seen these hilarious popping crochet coasters! Whether styled as a squished lizard, frog, squirrel, or rat, these flat roadkill-style amigurumi coasters have taken the crafting community by storm.
When you place your coffee mug or cold drink on the body, the frog’s head, bulging eyes, popping tongue, and flat, sprawling legs stick out around the base. It instantly looks like a funny, cartoonish squished frog on your desk or coffee table!
If you are looking for a quick 1-hour crochet project, a funny Secret Santa gift, or a best-seller item for your upcoming craft fairs, this free flat frog crochet coaster pattern is an absolute must-make.
Why You’ll Love This Free Flat Crochet Coaster Pattern
- Low-Sew Design: The body base is worked in easy continuous rounds, and assembly requires minimal joining effort.
- Quick & Last-Minute Friendly: Takes only 1 to 1.5 hours from start to finish, using tiny amounts of scrap yarn.
- Beginner-Friendly Stitches: Uses basic double crochet, single crochet, and a neat crab-stitch edge finish.
- Highly Customizable: Works amazingly well with classic Category 4 worsted-weight cotton or acrylic yarn for absorbency, or plush chenille yarn for an oversized squishy look.
- Great Craft Fair Seller: Quirky novelty items like roadkill coasters grab attention fast and offer high profit margins because of low material costs.
Pattern Notes & Skill Level
| Feature | Details |
| Skill Level | Easy / Advanced Beginner |
| Terminology | Standard US Crochet Terms |
| Time Required | 1 – 1.5 Hours |
| Finished Size | Approx. 5.5–6 inches (14–15 cm) diameter using worsted-weight yarn. |
| Category | Free Amigurumi & Crochet Coaster Pattern / Funny Home Decor |
Pro-Tip for Coasters: If you want your popping frog coaster to absorb liquid condensation from cold drinks, use 100% Cotton Yarn (such as Lily Sugar ‘n Cream or Paintbox Yarns Cotton). If you want it strictly as a decorative mug rug or key tray, acrylic or chenille/plush yarn works wonderfully!
Materials Needed
- Yarn:
- Main Color (Green): Approx. 30–40 yards of Medium Worsted-Weight (Category 4) yarn in bright green, lime green, or dark green.
- Tongue Color (Pink): A small scrap of pink yarn.
- Eye Color (White): A small scrap of white yarn.
- Detail Color (Black): Black embroidery floss or scrap black yarn for the embroidered eyes (or 1 pair of 8mm safety eyes).
- Crochet Hook: 3.5 mm (US E-4) or 4.0 mm (US G-6) hook (adjust to match your yarn weight and preferred stitch tension).
- Tapestry Needle: For sewing pieces together and weaving in loose ends.
- Stitch Markers: To track rounds.
- Scissors.
Abbreviations (US Crochet Terms)
- MR: Magic Ring
- ch: Chain
- sc: Single Crochet
- dc: Double Crochet
- inc: Increase (work 2 stitches into the same stitch)
- dc inc: Double Crochet Increase (work 2 dc into the same stitch)
- dec: Decrease / Invisible Decrease
- sl st: Slip Stitch
- reverse sc/crab st: Reverse Single Crochet (worked backward for a sturdy, decorative rim)
- FO: Fasten Off
- [ ]: Total stitch count at the end of the round
Step-by-Step Popping Frog Crochet Coaster Pattern
1. Main Flat Body Base (Green Yarn)
The base is worked in joined rounds of double crochet to create a flat, circular coaster structure.
- Rnd 1: Start with a MR. Ch 2 (counts as 1st dc), work 9 dc into the ring. Sl st to top of starting ch-2, ch 2. [10 sts]
- Rnd 2: Work 10 dc inc (2 dc in each st around). Sl st to top of starting ch-2, ch 2. [20 sts]
- Rnd 3: (1 dc, 1 dc inc) × 10. Sl st to top of starting ch-2, ch 2. [30 sts]
- Rnd 4: (1 dc, 1 dc inc, 1 dc) × 10. Sl st to top of starting ch-1, ch 1. [40 sts]
- Rnd 5 (Border): Reverse sc (crab stitch) in every st around the perimeter. Sl st into first st, FO, and weave in your ends neatly.
2. Sprawling Frog Legs (Make 4 in Green Yarn)
Create four flat, webbed feet to sew around the body perimeter.
- Leg Stem: Ch 7. Starting in the 2nd ch from the hook, sc 6 down the chain.
- Webbed Toes (Worked at the end of the leg):
- Toe 1: Ch 3. Starting in the 2nd ch from the hook, sc 1, sc 1 in the next ch. Sl st back into the base of the main chain.
- Toe 2: Ch 3. Starting in the 2nd ch from the hook, sc 1, sc 1 in the next ch. Sl st back into the base of the main chain.
- Toe 3: Ch 3. Starting in the 2nd ch from the hook, sc 1, sc 1 in the next ch. Sl st back into the base of the main chain.
- FO, leaving a long tail for sewing to the main body base.
3. Flat Head Shell (Green Yarn)
- Rnd 1: Work 6 sc into a MR. [6 sts]
- Rnd 2: (1 sc, 1 inc) × 3. [12 sts]
- Rnd 3: (2 sc, 1 inc) × 3. [18 sts]
- Rnd 4: (3 sc, 1 inc) × 3. [24 sts]
- FO, leaving a long yarn tail for assembly. Fold the circular shell in half into a semi-circle shape.
4. Popping Tongue (Pink Yarn)
- Base: Ch 8.
- Row 1: Starting in the 2nd ch from the hook, sc 7 across.
- FO, leaving a short tail for sewing.
5. Bulging Eyes (Make 2)
- Rnd 1 (White Yarn): Work 6 sc into a MR. Sl st to first st.
- Rnd 2 (Color Change to Green): Join green yarn, sc in each st around (6 sc). [6 sts]
- FO, leaving a tail for sewing.
- Eye Detail: Stitch a black “X” or horizontal line across the white portion using black yarn/embroidery thread (or insert an 8mm safety eye through the white center before sewing).
Assembly & Finishing Instructions
- Attach Tongue & Fold Head: Insert the pink tongue slightly inside the folded semi-circle head so it hangs outward. Sew or glue the tongue securely between the two folded halves of the head.
- Attach Eyes: Position the two bulging eyes along the top curved fold of the head piece. Sew securely into place.
- Attach Head to Base: Position the assembled frog head along one outer edge of the circular coaster base (Rnd 5). Sew the open bottom edge of the semi-circle flat onto the border so the head and tongue project outward.
- Attach Legs: Position 2 front legs near the top sides of the body (just below the head) and 2 hind legs near the lower half of the coaster base. Sew flat using your tapestry needle.
- Weave in Ends: Block your coaster flat using a damp blocking method or a light steam iron if using cotton yarn to prevent the edges from curling!
Frequently Asked Questions (FAQ)
What yarn is best for crochet coasters?
100% worsted-weight cotton yarn is the best choice for functional coasters because cotton absorbs heat and liquid condensation from cold drinks. However, if you are making this purely as a funny novelty gift or desk decoration, acrylic yarn or soft velvet/chenille yarn works great!
How do I stop my crochet coaster edges from curling?
Tension plays a big role in flat circles! Don’t work your double crochet stitches too tightly. If your coaster curls inward, increase your hook size by 0.5 mm or block your finished coaster by pinning it flat and lightly steaming it.
If you have any questions or want another free crochet pattern for one of those macabre coasters, feel free to leave a comment!