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whoville costumes

Skip it

A small market ($0/yr) — this niche doesn't clear our bar today.

Market size 0Growth 0Conversion 0Competition 27Returns 5Price range 69Avg price 90Brand share 48Review moat 73Quality gap 67

Avg price

Great$21.08

avg listing price — sweet spot $15–$100

Review moat

Good585.6

avg incumbent reviews — the moat a new listing must climb

Price range

Good$7.26–$32.50

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

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Brand share

Okay76%

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

Competition

Okay69%

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

Returns

Bad10.5%

return rate — above 5% kills the launch gate

Market size

Bad$0

$0/yr · 256K searches

Growth

Bad-62.2%

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

Conversion

Bad0.0%

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

According to Flapen's Amazon United States niche tracking, whoville costumes is a $0/yr Amazon United States market (256K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 28/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

whoville costumes market data

Units sold / yr
2K–3K
avg 0–100/product
Revenue / yr
$42K–$53K
units × avg price
Conversion rate
0.0%
Avg BSR
#3,141
Page quality
0%
Prime
100%
Sponsored
53%
Out of stock
9.6%
Avg brand age
43 months
Avg seller age
194 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 rising

Sellers

36

Top-5 brand share

76%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

24%

  • Rubies30%
  • Leg Avenue24%
  • ALIREVERIE7%
  • RONGTAI5%
  • elope5%
  • PUKAVT5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -62.2% search growth over the last 90 days.
40K30KBlack Friday '24Holiday '24Spike '25Black Friday '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Nov, Dec · busiest ÷ quietest = 151.5×

Top whoville costumes search terms

  • whoville costumes99K/yr
  • whoville costumes for adults68K/yr
  • grinch character costumes9K/yr
  • who costumes from whoville6K/yr
  • whoville costume17K/yr
  • betty lou who costume8K/yr
  • whoville outfit6K/yr
  • whoville costumes for women8K/yr
  • grinch movie costumes6K/yr
  • whoville characters costumes4K/yr
All search terms

Top whoville costumes products on Amazon

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

0%10%$020%$030%$040%$01101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 15 tracked products in this niche — three views at once, no toggling.

What buyers say about whoville costumes

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

What buyers love

Quality-Overall21%

“Great quality for $30”

Color14%

“Color is great”

Wig/Artificial Hair Quality13%

“Very nice wig”

Ease Of Use10%

“Easy to put on”

Length8%

“Hits at the perfect length and is so fun and flirty”

Size-Overall6%

“I loved the look and fit”

Comfort-Overall4%

“comfortable enough for a fun costume accessory”

Durability2%

“there was no missing parts the durability was good overall it was a nice product”

Adhesion/Stickiness2%

“stays in place”

Value For Money2%

“the skirt was se through good price for what you get”

What buyers complain about

Size-Overall21%

“Wig was small”

Ease Of Use15%

“Hard to keep in”

Adhesion/Stickiness15%

“Won't stick”

Weight Heavy8%

“Too top heavy to realistically wear outside the house”

Length4%

“These are too short for a five foot tall person”

Durability4%

“broke right away”

Advertised Vs Actual Product4%

“Doesn't really look like the photo”

Strength4%

“A little flimsy”

Quality-Overall4%

“Accessories are poor quality”

Shoulder Fit4%

“The shoulders fit a little loosely on me”

Top return reasons

Size-Overall43%
Waist Fit7%
Chest Fit6%
Shoulder Fit5%
Length5%
Quality-Overall4%
Advertised Vs Actual Product3%
Functionality-Overall3%
Adhesion/Stickiness2%
Color2%

Common questions

Is whoville costumes profitable to sell on Amazon United States?
The niche generates $0/yr across 15 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -62.2%. Flapen's verdict: Skip it (28/100).
How competitive is the whoville costumes niche?
14 brands and 36 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 76% of demand.
What do buyers complain about in whoville costumes?
Top complaints mined from reviews: Size-Overall, Ease Of Use, Adhesion/Stickiness. The return rate is 10.5% — above our launch gate.
When does demand for whoville costumes peak?
Demand peaks in Nov–Dec; the busiest month runs 151.5× the quietest.
What does it cost to enter the whoville costumes niche?
Listings span $7.26–$32.50; the average listing price is $21.08 (sweet spot $15–$100). The average incumbent carries 586 reviews — the moat a new listing must climb.