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uncle fester costume adult

Skip it

High returns (11.5%) — this niche doesn't clear our bar today.

Market size 15Growth 22Conversion 14Competition 53Returns 2Price range 88Avg price 95Brand share 46Review moat 65Quality gap 83

Avg price

Incredible$34.47

avg listing price — sweet spot $15–$100

Price range

Great$12.82–$105.51

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Review moat

Good901.68

avg incumbent reviews — the moat a new listing must climb

Competition

Good53%

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

Brand share

Okay77%

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

Growth

Bad-6.5%

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

Market size

Bad$58K

$58K/yr · 155K searches

Conversion

Bad1.1%

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

Returns

Bad11.5%

return rate — above 5% kills the launch gate

According to Flapen's Amazon United States niche tracking, uncle fester costume adult is a $58K/yr Amazon United States market (155K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 40/100.

Data updated Jul 17, 2026 · scored weekly · How we score niches

uncle fester costume adult market data

Units sold / yr
2K–3K
avg 0–100/product
Revenue / yr
$69K–$86K
units × avg price
Conversion rate
1.1%
Avg BSR
#19,475
Page quality
0%
Prime
86%
Sponsored
50%
Out of stock
10.4%
Avg brand age
49 months
Avg seller age
173 days

Competition & brand share

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

Brands

16 rising

Sellers

23

Top-5 brand share

77%

Top 20: 100%

Top-5 click share

53%

Top 20: 92%

Open market

19%

  • PAINEOMN50%
  • Fun Costumes15%
  • WonShak5%
  • The Addams Family TV Series4%
  • Zadin4%
  • NTYNTY4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -6.5% search growth over the last 90 days.
25K15KSpike '24Spike '25Prime Day '25SepDecMarJunAugNovMarMay

Peak months: Sep, Oct · busiest ÷ quietest = 85.8×

Top uncle fester costume adult search terms

  • uncle fester costume57K/yr
  • uncle fester14K/yr
  • uncle fester costume adult59K/yr
  • fester addams costume4K/yr
  • fester costume3K/yr
  • uncle fester mask6K/yr
  • fester addams costume adult13K/yr
All search terms

Top uncle fester costume adult 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%4%$2K8%$5K12%$7K16%$9K1101001K10K100K 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 24 tracked products in this niche — three views at once, no toggling.

What buyers say about uncle fester costume adult

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

What buyers love

Size-Overall33%

“Costume fit was good with belt”

Value For Money21%

“Great deal”

Quality-Overall8%

“Great quality for the price”

Material Quality6%

“Material seems to be good quality”

Waist Fit6%

“Length and waist size seemed Ok”

What buyers complain about

Durability25%

“I don't think it would hold up to multiple uses”

Size-Overall13%

“We returned as the arm size would have felt to tight”

Arm Fit13%

“The arm size runs a little small so I would suggest move up 1 size”

Top return reasons

Size-Overall43%
Length16%
Color6%
Sleeve Fit6%
Material Quality5%
Advertised Vs Actual Product3%
Quality-Overall3%
Shoulder Fit2%
Smell2%
Stitch/Finish/Polish2%

Common questions

Is uncle fester costume adult profitable to sell on Amazon United States?
The niche generates $58K/yr across 28 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -6.5%. Flapen's verdict: Skip it (40/100).
How competitive is the uncle fester costume adult niche?
16 brands and 23 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 77% of demand.
What do buyers complain about in uncle fester costume adult?
Top complaints mined from reviews: Durability, Size-Overall, Arm Fit. The return rate is 11.5% — above our launch gate.
When does demand for uncle fester costume adult peak?
Demand peaks in Sep–Oct; the busiest month runs 85.8× the quietest.
What does it cost to enter the uncle fester costume adult niche?
Listings span $12.82–$105.51; the average listing price is $34.47 (sweet spot $15–$100). The average incumbent carries 902 reviews — the moat a new listing must climb.