
Introduction
Meet the STEM Lab Bunny: a nerdy-cute science lover styled for a pastel classroom scene. This amigurumi wears a mint beanie with a Pi badge, clear “safety goggles,” a white polo shirt with a mint collar and atomic chest emblem, soft gray culotte shorts, and clean white sneakers. The star accessory is a crossbody test-tube bag filled with “colorful liquids” (stacked yarn sections) and a tiny cap.
Please note: I strive for accuracy in every pattern, but occasional errors can happen. Thank you for understanding and for enjoying my designs.
Step 1: Form & Proportion Analysis
- Finished height: ~9.75–10 in (24–25.5 cm) with DK cotton and a 2.5 mm hook.
- Head: Slightly oval sphere; widest around Rnds 16–20. Eyes are low and wide (8 mm), set 8 stitches apart between Rnds 13–14. Nose is a small triangle/oval stitched in cocoa; mouth is a single downstroke with a tiny curve.
- Ears: Long, soft ovals that hang down; attached slightly behind the eye line, angled forward to peek from under the beanie.
- Body: Compact cylinder with a gentle belly; neck slim for a snug polo collar.
- Arms: Straight tubes, light stuffing only at hands; attached a touch forward so the test-tube strap sits naturally.
- Legs/Feet: Straight legs from rounded sneakers. Soles have a defined foxing line; laces are simple embroidered ties.
- Outfit:
- Beanie: Mint rib with folded brim and a round Pi badge.
- Polo: White body with textured waffle grid, mint collar and sleeve cuffs, two tiny placket buttons, embroidered atom icon on the left chest.
- Culottes: Mid-rise, wide-leg shorts in light gray with subtle basket/rice stitch texture.
- Sneakers: Cream/white with rounded toe and stitched lace detail.
- Goggles: Soft translucent look achieved by a light cream/white yarn i-cord frame and a flat strap—sits just under the beanie brim.
- Test-tube bag: Cylindrical mesh with stacked color bands (yellow–orange–red) and a short mint band at the top; tiny droplet sticker (embroidered circle) on front; cream strap crosses left shoulder to right hip.
- Stitch density: Doll fabric ≈ 8 sc per 1 in (2.5 cm); clothing a hair looser for drape.
- Angles: Ears slightly forward; legs perpendicular for parallel stance; beanie sits low above eyebrows; strap tilted ~45°.
Materials
- DK-weight 100% cotton yarn in:
- C1 Beige/almond (bunny body & ears)
- C2 Cream/white (sneakers, polo, goggles frame)
- C3 Mint (beanie, collar/cuffs, test-tube upper)
- C4 Light gray (culottes)
- C5 Cocoa brown (nose, mouth, eye embroidery if needed)
- C6 Sunshine yellow, C7 Tangerine, C8 Tomato red (tube “liquids”)
- C9 Pale turquoise (atom emblem & tiny droplet)
- C10 Butter (Pi badge symbol & tube strap)
- Hooks: 2.5 mm for amigurumi; 3.0 mm for beanie brim and culotte hem (optional).
- Eyes: 8 mm safety eyes (or crochet black circles).
- Stuffing (polyfill); tapestry needle; stitch markers; scissors.
Abbreviations (US Terms)
- MR – magic ring
- sc – single crochet
- inc – increase (2 sc in one stitch)
- dec – invisible decrease
- sl st – slip stitch
- ch – chain
- hdc – half double crochet
- dc – double crochet
- tr – treble crochet
- BLO / FLO – back/front loop only
- sk – skip
- rep – repeat
- st(s) – stitch(es)
- Rnd/Row – round/row
- RS – right side
Rice Stitch (culottes texture): (sc, dc) repeat across; next row/round work dc into previous sc and sc into previous dc for a woven look.
General Notes
- Work in continuous spirals unless a join is noted.
- Stuff gradually and firmly to keep surfaces smooth.
- All trims (buttons, badge, laces) are yarn-only micro-pieces.
Step 2: The Pattern
Head (C1)
Rnd 1: MR, 6 sc [6]
Rnd 2: inc around [12]
Rnd 3: (sc, inc)×6 [18]
Rnd 4: (2 sc, inc)×6 [24]
Rnd 5: (3 sc, inc)×6 [30]
Rnd 6: (4 sc, inc)×6 [36]
Rnd 7: (5 sc, inc)×6 [42]
Rnds 8–18: sc around [42]
— Insert safety eyes between Rnds 13–14, 8 sts apart.
Rnd 19: (5 sc, dec)×6 [36]
Rnd 20: sc around [36]
Rnd 21: (4 sc, dec)×6 [30]
Rnd 22: (3 sc, dec)×6 [24] — begin stuffing.
Rnd 23: (2 sc, dec)×6 [18]
Rnd 24: (sc, dec)×6 [12]
Rnd 25: sc around [12]; fasten off with a long tail (neck opening remains).
Nose & Mouth (C5): Satin-stitch a tiny triangle/oval centered 2 rounds below the eyes (~3 sts wide). Add one short vertical stitch and a slight curve for the mouth.
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Ears (make 2, C1)
Rnd 1: MR, 6 sc [6]
Rnd 2: (sc, inc)×3 [9]
Rnd 3: (2 sc, inc)×3 [12]
Rnds 4–18: sc around [12]
Rnd 19: (2 sc, dec)×3 [9]
Rnd 20: sc around [9]; fasten off with long tails.
Lightly steam to drape. Sew high on head, a little behind the eye line, letting them angle forward.
Body (C1)
Rnd 1: MR, 6 sc [6]
Rnd 2: inc around [12]
Rnd 3: (sc, inc)×6 [18]
Rnd 4: (2 sc, inc)×6 [24]
Rnd 5: (3 sc, inc)×6 [30]
Rnd 6: (4 sc, inc)×6 [36]
Rnds 7–9: sc around [36]
Rnd 10: (4 sc, dec)×6 [30]
Rnd 11: (3 sc, dec)×6 [24] — natural waist for shorts
Rnd 12: sc around [24]
Rnd 13: (2 sc, dec)×6 [18] — start stuffing
Rnd 14: (sc, dec)×6 [12]
Rnd 15: dec around [6]; close.
Sew head to body with ladder stitches.
Arms (make 2, C1)
Rnd 1: MR, 6 sc [6]
Rnd 2: (sc, inc)×3 [9]
Rnds 3–13: sc around [9]
Rnd 14: (2 sc, dec)×2, sc 1 [7]
Stuff lightly at the hand end only. Flatten top and whipstitch to sides slightly forward.
Legs & Sneakers (make 2)
Sole (C2)
Rnd 1: ch 6; sc in 2nd ch from hook, sc 3, 3 sc in last; continue other side sc 3, inc in last [12]
Rnd 2: inc, sc 3, inc×3, sc 3, inc×2 [18]
Rnd 3: BLO sc around [18]
Upper (C2)
Rnd 4–5: sc around [18]
Rnd 6: (4 sc, dec)×3 [15]
Rnd 7: (3 sc, dec)×3 [12] — toe formed.
Ankle & Leg (C1)
Rnd 8: switch to C1; sc around [12]
Rnds 9–12: sc around [12]
Rnd 13: (sc, dec)×4 [8]
Rnds 14–16: sc around [8]; fasten off with long tail.
Stuff firmly; sew both legs parallel so soles are even.
Sneaker Details (C2):
- Surface sl st around Rnd 3 to create a foxing line.
- Embroider two horizontal bars and a tie for laces.
Mint Beanie with Pi Badge (C3 + C2/C10)
Beanie Rib (worked flat)
Row 1: ch 32; sc in 2nd ch and back bumps across [31].
Rows 2–30: ch 1, turn; BLO sc across [31].
Seam short ends with sl sts to form a tube.
Crown
Pick up 30 sc evenly around one edge.
Rnd 1: (sc 3, dec)×6 [24]
Rnd 2: (sc 2, dec)×6 [18]
Rnd 3: (sc, dec)×6 [12]
Rnd 4: dec around [6]; close. Fold opposite edge to create a folded brim.
Pi Badge
Badge Base (C3): MR, 8 sc; sl st to join.
Pi Symbol (C10): embroider the π shape with satin/back stitches. Edge with a surface sl st in C2 if you like. Sew to the brim’s left side.
Safety Goggles (C2)
Front Frame:
Make an i-cord: ch 40; sl st in 2nd ch and through next 38 to form a neat cord. Shape into a soft rectangle (approx. 3 cm tall on doll); tack corners together with a couple of stitches.
Bridge & Strap:
Bridge—ch 6, sl st back; stitch across the center of the frame.
Strap—ch 48; sl st back; sew each end to frame sides so it wraps snugly around the head, just under the beanie brim. (For a “clear lens” look, leave openings empty—no plastic.)
Polo Shirt (C2 body, C3 trims)
Body Texture (optional waffle): alternate sc, ch 1 (sk 1) for a light grid.
Rnd 1: With C2, ch 56, join without twisting [56]
Rnd 2: (sc, ch 1, sk 1) around [56]
Rnd 3: work sc into each prior ch-1 space with ch 1 after each sc (moss/linen).
Rnd 4: repeat moss stitch.
Rnd 5 (divide for sleeves): sc 8, ch 4, sk 10, sc 20, ch 4, sk 10, sc 8 [44 incl. ch spaces]
Rnds 6–10: continue moss in the round, placing 2 sc in each underarm chain on the first of these rounds (adds 8 sts) → ~52 sts; stop at waist.
Hem: sc around once without chain spaces to firm the edge; fasten off.
Sleeve Cuffs (each):
Pick up 20 sts around armhole with C2; Rnd 1: moss stitch around; Rnd 2 (C3): sc around; sl st and fasten. Fold a tiny cuff if desired.
Collar & Placket (C3):
Collar—Row 1: ch 20; sc in 2nd ch and across [19]. Rows 2–3: sc across. Curve around front neck, leaving a small V; stitch down.
Placket—With C3, surface sl st a short vertical line at center front (≈ 6–7 sts).
Buttons (C2 micro circles): MR, sc, hdc, sc, close; make 2; sew along the placket.
Atomic Emblem (C9):
Backstitch one small ring and three elliptical orbits crossing it; add a tiny seed stitch “nucleus.” Place on left chest.
Culotte Shorts (C4, rice stitch)
Waistband:
Rnd 1: ch 48, join [48]
Rnd 2: sc around [48]
Rnd 3: BLO sc around (casing ridge) [48]
Body (work in the round):
Rnd 4: (sc, dc) repeat around (Rice Stitch base) [48]
Rnd 5: (dc into prev sc, sc into prev dc) around [48]
Rnd 6: (repeat Rice Stitch) adding increases evenly: every 8th pair work (sc, dc, sc, dc) into the same two base sts → [54]
Rnd 7: maintain rice stitch pattern with no new inc [54]
Divide for Legs:
Mark the join; count 27 sts to the opposite side.
— Right Leg: Work rice stitch over first 27 sts; join to first of this segment [27]. Rnds 1–4: rice stitch around [27]. Rnd 5 (hem): switch to 3.0 mm, sc around; sl st and fasten.
— Left Leg: Attach yarn to remaining 27 sts; repeat.
Optional side pleat: pinch one stitch at outer thigh and tack inside for a culotte silhouette.
Test-Tube Crossbody Bag
Tube Body (C6→C7→C8→C6 color stack)
Rnd 1 (C6): MR, 6 sc [6]
Rnd 2: inc around [12]
Rnd 3: (sc, inc)×6 [18]
Rnd 4: sc BLO around [18]
Rnd 5: (dc, ch 1, sk 1) around (mesh) [18 dc, 18 sp]
Rnd 6: sl st into next ch-sp; (dc in sp, ch 1) around.
Rnd 7: switch to C7 and repeat Rnd 6.
Rnd 8: switch to C8 and repeat Rnd 6.
Rnd 9: switch back to C6; repeat Rnd 6.
Rnd 10 (C3 rim): (sc in dc, sc in ch-sp) around [36]. Fasten off.
Cap (C3)
Rnd 1: MR, 6 sc [6]
Rnd 2: inc around [12]
Rnd 3: sc BLO around [12]
Rnd 4: (sc, dec)×4 [8]; fasten with a tail and stitch to rim’s top back (leave a tiny gap so the strap looks inserted).
Droplet Sticker (C9)
MR, 5 sc; close; stitch to front center.
Strap (C10)
Ch 80–90 for crossbody length; sl st back; sew ends to opposite sides of the rim so the tube hangs at the right hip.
Final Face Details
- Eye highlights: a tiny C2/C9 stitch at the upper outer corner of each eye.
- Optional eyebrows: two minimal upward ticks in C5.
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Assembly & Dressing
Order
- Dress the polo first.
- Pull on culottes; line the waistband at the natural waist.
- Put on sneakers (or add lace detail to fixed feet).
- Place goggles around the head; seat the frame just beneath where the beanie will sit.
- Position beanie low and tack at two points; push ears to peek out.
- Hang the test-tube bag from left shoulder to right hip.
Blocking, Styling & Care
- Hover steam to relax the collar, culotte hems, and beanie brim—do not touch iron to cotton.
- Pinch the sneaker toes while warm to keep them round.
- Spot clean only; air dry.
- For photos, lean the bunny lightly against a wall or lab chart; the flat sneaker soles help stability.
Troubleshooting
- Head wobble: Add a neck peg (6 sc around × 4–5 rnds) between head and body before sewing.
- Culottes too snug/loose: Adjust waistband chain by ±2; keep leg split at half the total count.
- Polo tight at underarm: When dividing sleeves, use ch 5 instead of ch 4 and pick up one extra st on the first round after dividing.
- Beanie rides up: Add one more decrease round on the crown, or tack the brim to the head at the back.
- Goggles slipping: Shorten the strap by 2–4 chains or add a tiny hidden stitch to the beanie brim.
Quick Reference (Counts at a Glance)
- Head: max 42 sts; eyes between R13–14 (8 sts apart); close at 12.
- Ears: 12-st tubes to R18; attach high with forward tilt.
- Body: max 36 → waist 24 → close at 6.
- Arms: 9-st tubes taper to 7.
- Legs/Shoes: sole 18; leg tube 12 → 8.
- Beanie: rib 31-high × 30 rows; crown to 6.
- Polo: ring 56; divide sleeves with 10-st gaps; body ~52 sts at hem.
- Culottes: waist 48 → 54; legs 27/27.
- Test-tube: base 18; mesh bands in C6/C7/C8/C6; rim 36 sts; strap ch 80–90.