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willa zombies costume

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A small market ($20K/yr) — this niche doesn't clear our bar today.

Market size 5Growth 27Conversion 15Competition 49Returns 43Price range 92Avg price 95Brand share 39Review moat 92Quality gap 58

Avg price

Incredible$30.19

avg listing price — sweet spot $15–$100

Review moat

Great150.6

avg incumbent reviews — the moat a new listing must climb

Price range

Great$13.20–$58.08

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Okay55%

top-5 click share — leaders hold, buyers still browse

Returns

Okay3.9%

return rate — above 6% kills the launch gate

Brand share

Okay82%

top-5 brand share — brands hold most of the demand

Growth

Okay+1.3%

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

Conversion

Bad1.2%

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

Market size

Bad$20K

$20K/yr · 56K searches

Competition

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

46

Top-5 brand share

82%

Open market

12%

  • Disguise26%
  • Spirit Halloween19%
  • CBLDZZ18%
  • Aotekids10%
  • Party City9%
  • BENBIYO6%
  • Open — no brand owns it (6 brands, 12%)

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%5%$99910%$2K15%$3K20%$4K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 20 tracked products in this niche — three views at once, no toggling.

Demand

Weekly Amazon search volume, last 38 weeks — +1.3% search growth over the last 90 days.
5K3KSpike '26Oct '25Nov '25Jan '26Feb '26Apr '26May '26

Reviews

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

What buyers love

Quality-Overall35%

“Really good and good quality”

Size-Overall29%

“Fit great and was correct size”

Fun/Entertainment Experience13%

“this one is fun”

Design-Overall6%

“Amazing design”

Durability6%

“hasn't fell apart”

Washability6%

“It's been washed a bunch”

Color4%

“The color purple was perfect”

What buyers complain about

Size-Overall100%

“Top ran a little big”

Top return reasons

Size-Overall43%
Value For Money21%
Durability5%
Advertised Vs Actual Product4%
Length4%
Quality-Overall4%
Product Condition4%
Defective Material/Parts3%
Waist Fit2%
Gifting Purpose2%