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31

death eater mask

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A small market ($3K/yr) — this niche doesn't clear our bar today.

Market size 1Growth 23Conversion 4Competition 13Returns 30Price range 81Avg price 95Brand share 35Review moat 89Quality gap 52

Avg price

Incredible$25.63

avg listing price — sweet spot $15–$100

Review moat

Great226.78

avg incumbent reviews — the moat a new listing must climb

Price range

Great$9.46–$40.16

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Brand share

Okay84%

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

Returns

Okay5.4%

return rate — above 6% kills the launch gate

Growth

Bad-4.8%

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

Competition

Bad84%

top-5 click share — a locked-up shelf

Conversion

Bad0.3%

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

Market size

Bad$3K

$3K/yr · 36K searches

Competition

The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 flat

Sellers

24

Top-5 brand share

84%

Open market

9%

  • Masfrida41%
  • Hqroidd13%
  • Spirit Halloween11%
  • Enso Rings10%
  • Bulex9%
  • Disguise7%
  • Open — no brand owns it (3 brands, 9%)

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%15%$47030%$94045%$1K60%$2K1101001K 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 — -4.8% search growth over the last 90 days.
10K6KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct · busiest ÷ quietest = 27.8×

Reviews

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

What buyers love

Advertised Vs Actual Product40%

“The work”

Quality-Overall30%

“Its all good. Ive had no complaints so far”

Size-Overall20%

“Fit perfect”

Suitability Hot Weather10%

“The nights are pretty chilly”

What buyers complain about

Size-Overall75%

“It did not fit properly”

Quality-Overall25%

“Extremely disappointing quality”

Top return reasons

Size-Overall42%
Material Quality10%
Advertised Vs Actual Product8%
Quality-Overall6%
Defective Material/Parts6%
Length4%
Weight Light3%
Neck Fit2%
Weather Proof2%
Waist Fit2%