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squiggle pen

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A small market ($21K/yr) — this niche doesn't clear our bar today.

Market size 5Growth 9Conversion 35Competition 9Returns 96Price range 89Avg price 84Brand share 19Review moat 77Quality gap 75

Returns

Incredible0.9%

return rate — above 6% kills the launch gate

Price range

Great$13.10–$39.44

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Great$18.51

avg listing price — sweet spot $15–$100

Review moat

Great469.11

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Conversion

Okay2.8%

search→purchase rate — share of searches ending in a sale

Brand share

Bad92%

top-5 brand share — brand-locked demand

Growth

Bad-32.3%

90-day search growth — must beat 0% to launch

Competition

Bad89%

top-5 click share — a locked-up shelf

Market size

Bad$21K

$21K/yr · 40K searches

Competition

The top 5 products capture 89% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 rising

Sellers

14

Top-5 brand share

92%

Open market

5%

  • Physical Therapy Aids37%
  • Squiggle Wiggle Writer36%
  • Hart12%
  • Hart Enterprises Inc.4%
  • YoYa Toys3%
  • PGPBW3%
  • Open — no brand owns it (2 brands, 5%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$2K20%$4K30%$6K40%$8K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 9 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -32.3% search growth over the last 90 days.
5K4KPrime Day '24Spike '24Holiday '24Prime Day '25Spike '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Nov, Dec · busiest ÷ quietest = 11.0×

Reviews

What buyers praise and complain about, mined from review topics.

What buyers love

Fun/Entertainment Experience48%

“still super fun”

Writing Experience27%

“They write really smoothly also”

Quality-Overall7%

“Pleasantly suprised at the quality”

Color5%

“Very fun, like the colored ink,”

Size-Overall3%

“the size was perfect”

Material Quality2%

“It's made out of a strong plastic material”

Leak-Proof2%

“And I've had no problems with leaks”

What buyers complain about

Durability18%

“Broke immediately before first use”

Functionality-Overall17%

“didnt work”

Dry/Empty Ink11%

“Two out of the three pens ink was dry”

Quality-Overall9%

“Absolute cheapness”

Ease Of Use6%

“Hard to open”

Writing Experience6%

“Pens dont write”

Value For Money6%

“overall not a great value for your money”

Smell5%

“smelled like burning plastic”

Advertised Vs Actual Product2%

“False Advertisement”

Strength2%

“Kind of flimsy”

Top return reasons

Functionality-Overall35%
Defective Material/Parts11%
Battery Inclusion6%
Color5%
Durability5%
Advertised Vs Actual Product5%
Size-Overall5%
Writing Experience3%
Leak-Proof3%
Value For Money3%