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cosmo and wanda costume

Skip it

High returns (10.8%) — this niche doesn't clear our bar today.

Market size 10Growth 26Conversion 10Competition 53Returns 4Price range 65Avg price 83Brand share 65Review moat 97Quality gap 80

Review moat

Incredible66.64

avg incumbent reviews — the moat a new listing must climb

Avg price

Great$18.33

avg listing price — sweet spot $15–$100

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Brand share

Good66%

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

Price range

Good$4.38–$34.83

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

Competition

Good53%

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

Growth

Okay+1.1%

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

Market size

Bad$39K

$39K/yr · 257K searches

Conversion

Bad0.8%

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

Returns

Bad10.8%

return rate — above 5% kills the launch gate

According to Flapen's Amazon United States niche tracking, cosmo and wanda costume is a $39K/yr Amazon United States market (257K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 42/100.

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

cosmo and wanda costume market data

Units sold / yr
6K–8K
avg 100–250/product
Revenue / yr
$110K–$147K
units × avg price
Conversion rate
0.8%
Avg BSR
#2,593
Page quality
0%
Prime
100%
Sponsored
41%
Out of stock
12.8%
Avg brand age
43 months
Avg seller age
209 days

Competition & brand share

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 rising

Sellers

21

Top-5 brand share

66%

Top 20: 100%

Top-5 click share

53%

Top 20: 98%

Open market

27%

  • Sratte21%
  • Parma7719%
  • ICHIHSUE11%
  • Rubies8%
  • GANSHAYA7%
  • EchoElce7%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +1.1% search growth over the last 90 days.
60K40KSpike '24Spike '25Prime Day '25SepDecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 73.6×

Top cosmo and wanda costume search terms

  • cosmo and wanda costume101K/yr
  • fairly odd parents costume49K/yr
  • cosmo costume10K/yr
  • fairy odd parents costume17K/yr
  • fairly odd parents crown9K/yr
  • cosmo and wanda crown10K/yr
  • fairly odd parents wings5K/yr
  • wanda fairly odd parents costume4K/yr
  • cosmo wanda costume4K/yr
  • wanda costume fairly odd parents6K/yr
All search terms

Top cosmo and wanda costume 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%5%$2K10%$4K15%$6K20%$8K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 22 tracked products in this niche — three views at once, no toggling.

What buyers say about cosmo and wanda costume

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

What buyers love

Value For Money27%

“Good value for price”

Size-Overall20%

“This fit super cute”

Fun/Entertainment Experience10%

“Fun Dress up play wear for the little girls in your life”

Quality-Overall9%

“Parts are good”

Ease Of Use8%

“Easy Cosplay”

Brightness/Shine/Glow7%

“glitter”

Strength6%

“Sturdy”

Comfort-Overall4%

“True to size and comfortable”

Weight Light2%

“they are so lightweight”

What buyers complain about

Size-Overall25%

“the wings are a bit small”

Quality-Overall13%

“I wouldnt say that they are the best quality”

Strength8%

“not that sturdy”

Thickness6%

“the arm elastic could be thicker”

Top return reasons

Size-Overall49%
Length6%
Chest Fit6%
Waist Fit5%
Defective Material/Parts4%
Advertised Vs Actual Product4%
Quality-Overall4%
Shape/Style3%
Brightness/Shine/Glow2%
Value For Money2%

Common questions

Is cosmo and wanda costume profitable to sell on Amazon United States?
The niche generates $39K/yr across 22 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +1.1%. Flapen's verdict: Skip it (42/100).
How competitive is the cosmo and wanda costume niche?
17 brands and 21 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 66% of demand.
What do buyers complain about in cosmo and wanda costume?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Strength. The return rate is 10.8% — above our launch gate.
When does demand for cosmo and wanda costume peak?
Demand peaks in Sep–Oct–Nov; the busiest month runs 73.6× the quietest.
What does it cost to enter the cosmo and wanda costume niche?
Listings span $4.38–$34.83; the average listing price is $18.33 (sweet spot $15–$100). The average incumbent carries 67 reviews — the moat a new listing must climb.