onceler costume
Skip itSoft demand (-31.5% this quarter) — this niche doesn't clear our bar today.
Avg price
Incredible$24.53avg listing price — sweet spot $15–$100
Price range
Great$7.52–$64.57cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great354.76avg incumbent reviews — the moat a new listing must climb
Brand share
Good64%top-5 brand share — brands hold most of the demand
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Competition
Okay58%top-5 click share — leaders hold, buyers still browse
Market size
Okay$180K$180K/yr · 369K searches
Conversion
Bad2.0%search→purchase rate — share of searches ending in a sale
Returns
Bad6.9%return rate — above 5% kills the launch gate
Growth
Bad-31.5%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, onceler costume is a $180K/yr Amazon United States market (369K searches/yr). The top 5 brands hold 64% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 44/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
onceler costume market data
- Units sold / yr
- 6K–8K
- avg 100–250/product
- Revenue / yr
- $147K–$196K
- units × avg price
- Conversion rate
- 2.0%
- Avg BSR
- #2,218
- Page quality
- 0%
- Prime
- 95%
- Sponsored
- 76%
- Out of stock
- 16.9%
- Avg brand age
- 39 months
- Avg seller age
- 203 days
Competition & brand share
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.Brands
20 rising
Sellers
39
Top-5 brand share
64%
Top 20: 100%
Top-5 click share
58%
Top 20: 99%
Open market
32%
- Aniler23%
- MOFOVELY17%
- Hikkcos9%
- Howriis8%
- Eybila6%
- HFYZZ4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -31.5% search growth over the last 90 days.Peak months: Sep, Oct · busiest ÷ quietest = 101.2×
Top onceler costume search terms
- onceler costume180K/yr
- onceler costume lorax5K/yr
- the onceler costume39K/yr
- lorax characters costume7K/yr
- onceler costume kids10K/yr
- once ler costume6K/yr
- onceler cosplay31K/yr
- once-ler costume7K/yr
- oncelor costume4K/yr
- onceler costume women24K/yr
Top onceler 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.
All 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Aniler Unisex Costume 15 Halloween Elbow Length 20s Stretchy Cosplay Solid Color Gloves (One Size Green)
Aniler$8.444.4★206 rev
MOFOVELY Mens Pirate Coat Steampunk Jacket Tailcoat Renaissance Jacket Halloween Hatter Costume (M Green)
MOFOVELY$23.264.3★732 rev
Green Costume Accessories Top Hat Book Character Costume Accessory Set for Women Adult Cosplay Halloween Party
Hikkcos$19.684.2★8 rev
Howriis Mens and Womens Spandex Gloves Costume Halloween Cosplay Stretchy Long Gloves (Green 45cm)
Howriis$10.444.4★280 rev
MOFOVELY Mens Medieval Steampunk Tailcoat Jacket Victorian Pirate Coat Renaissance Tailcoat Jacket Costume(S Green)
MOFOVELY$40.584.4★164 rev
Newest
by launch date
Aczyoxw Green Costume Accessories with Stripe Tie Blue Glasses Gloves Pink Pom-Pom and Bass Prop for Halloween Cosplay Party
Aczyoxw$7.526 rev
Green Costume Accessories Top Hat Book Character Costume Accessory Set for Women Adult Cosplay Halloween Party
Hikkcos$19.688 rev
KDAFJLKD Medieval Clothing Costume Steampunk Coat Tailcoat Men Halloween Renaissance Vampire Costumes for Adults (Green XX-Large)
KDAFJLKD$20.10136 rev
Alaxciax Oncele Costume Accessories Green Costume Accessories Stripe Tie with Blue Glasses Gloves Pink Pom-Pom for Men Women for World Book Day Book Character Dress Up Halloween Cosplay
Alaxciax$12.1427 rev
EQVYG 5 Pack Halloween Costume Accessories Adult Stripe Tie Sunglasses Green Gloves Pom Pom Brooch Chain Women Cosplay Party Set for onceler
EQVYG$16.9610 rev
Trending
90-day click momentum
Fun Costumes Adult Dr. Seuss The Lorax Costume Deluxe Jumpsuit with Plush Hood Hand Covers Foot Covers - Polyester Microfiber Fleece Small Orange
Fun Costumes$64.574.1★
KDAFJLKD Medieval Clothing Costume Steampunk Coat Tailcoat Men Halloween Renaissance Vampire Costumes for Adults (Green XX-Large)
KDAFJLKD$20.103.8★
Floraltop 6 Pcs Green Adult Top Hat Costume Accessories for Adult Tie Sunglasses Gloves Brooch Feather Boa for Cosplay Role Play
Floraltop$32.414.4★
Xpsivponi Mens Colonel White Suit Fast Food Characters Fancy Costume Outfit(Z2790 L)
Xpsivponi$57.574.4★
Aniler Unisex Costume 15 Halloween Elbow Length 20s Stretchy Cosplay Solid Color Gloves (One Size Green)
Aniler$8.444.4★
What buyers say about onceler costume
What buyers praise and complain about, mined from review topics.What buyers love
“Decent quality costume accessories for low price”
“It's a great price point”
“Everything held up well”
“It was as expected”
“the color is bright without looking cheap”
“fit comfortably”
“The pieces are lightweight”
“Great shape”
“Sturdy”
“Simple”
What buyers complain about
“runs small”
“In addition, I'm allergic to it”
Top return reasons
Common questions
- Is onceler costume profitable to sell on Amazon United States?
- The niche generates $180K/yr across 21 tracked products. 0 of 8 products launched in the last 360 days are still selling. 90-day search growth is -31.5%. Flapen's verdict: Skip it (44/100).
- How competitive is the onceler costume niche?
- 20 brands and 39 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 64% of demand.
- What do buyers complain about in onceler costume?
- Top complaints mined from reviews: Size-Overall, Allergies. The return rate is 6.9% — above our launch gate.
- When does demand for onceler costume peak?
- Demand peaks in Sep–Oct; the busiest month runs 101.2× the quietest.
- What does it cost to enter the onceler costume niche?
- Listings span $7.52–$64.57; the average listing price is $24.53 (sweet spot $15–$100). The average incumbent carries 355 reviews — the moat a new listing must climb.