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Harry Potter Costume Accessories

Skip it

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

Market size 5Growth 11Conversion 33Competition 72Returns 24Price range 71Avg price 83Brand share 67Review moat 53Quality gap 24

Avg price

Great$18.06

avg listing price — sweet spot $15–$100

Competition

Good42%

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

Price range

Good$5.22–$38.78

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

Brand share

Good65%

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

Review moat

Good1,377.41

avg incumbent reviews — the moat a new listing must climb

Conversion

Okay2.6%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Returns

Bad5.2%

return rate — above 5% kills the launch gate

Growth

Bad-27.9%

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

Market size

Bad$20K

$20K/yr · 42K searches

Is harry potter costume accessories profitable on Amazon?

According to Flapen's Amazon United States niche tracking, harry potter costume accessories is a $20K/yr Amazon United States market (42K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 38/100.

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

harry potter costume accessories market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.
Units sold / yr
2K–3K
avg 0–100/product
Revenue / yr
$36K–$45K
units × avg price
Conversion rate
2.6%
Avg BSR
#756
Page quality
0%
Prime
100%
Sponsored
79%
Out of stock
12.4%
Avg brand age
47 months
Avg seller age
158 days

Competition: brands, sellers & click share

The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.

Brands

19 rising

Sellers

71

Top-5 brand share

65%

Top 20: 100%

Top-5 click share

42%

Top 20: 88%

Open market

30%

  • Harry Potter25%
  • Disguise13%
  • MISS FANTASY12%
  • TINVSKQQKJ7%
  • QAQ-COSPLAY7%
  • Mzjeaziany5%

harry potter costume accessories demand & seasonality

Weekly Amazon search volume, last 104 weeks — -27.9% search growth over the last 90 days.
7K5KPrime Day '24Spike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 30.2×

Top harry potter costume accessories search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.
  • harry potter dress up7K/yr
  • harry potter accessories for kids13K/yr
  • harry potter costume accessories21K/yr
All search terms

Top harry potter costume accessories products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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

0%4%$7928%$2K12%$2K16%$3K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What reviews say buyers love and hate about harry potter costume accessories

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

What buyers love

Quality-Overall22%

“Great quality for Harry Potter world”

Size-Overall10%

“Great fit”

Gifting Purpose7%

“Cute gift”

Fun/Entertainment Experience7%

“lots of fun”

Value For Money7%

“Worth every cent”

Advertised Vs Actual Product6%

“Exactly as described”

Soft Feel5%

“The material is soft”

Strength4%

“Very sturdy”

Material Quality4%

“comfortable fabric that looks authentic”

Design-Overall3%

“Design on the bag is cool”

What buyers complain about

Size-Overall26%

“the hat is a bit small”

Quality-Overall16%

“buy a better quality costume from the get go”

Durability11%

“Came apart multiple times ongoing”

Material Quality7%

“Unfortunately it just felt and looked cheap”

Length4%

“super extra long”

Allergies4%

“She is allergic to a lot of earrings”

Advertised Vs Actual Product3%

“Misleading”

Comfort-Overall2%

“Uncomfortable”

Stitch/Finish/Polish2%

“The stitching looks rushed and low quality, which makes the costume look worn before even being used”

Value For Money1%

“Not worth the money”

Top return reasons

Size-Overall45%
Quality-Overall8%
Value For Money7%
Advertised Vs Actual Product5%
Material Quality5%
Length4%
Color4%
Defective Material/Parts3%
Functionality-Overall2%
Product Condition2%

Common harry potter costume accessories questions

Is harry potter costume accessories profitable to sell on Amazon United States?
The niche generates $20K/yr across 29 tracked products. 1 of 6 products launched in the last 360 days are still selling. 90-day search growth is -27.9%. Flapen's verdict: Skip it (38/100).
How competitive is the harry potter costume accessories niche?
19 brands and 71 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 65% of demand.
What do buyers complain about in harry potter costume accessories?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 5.2% — above our launch gate.
When does demand for harry potter costume accessories peak?
Demand peaks in Sep–Oct–Nov; the busiest month runs 30.2× the quietest.
What does it cost to enter the harry potter costume accessories niche?
Listings span $5.22–$38.78; the average listing price is $18.06 (sweet spot $15–$100). The average incumbent carries 1,377 reviews — the moat a new listing must climb.