Demon Slayer Birthday Decorations
FailDemand is soft, at -24.6% this quarter, so Demon Slayer Birthday Decorations is a Fail.
- Flapen Score
- 49 / 100Ranks 5,355 of 11,240 Home & Kitchen niches · on the category median49
- Market size
- $280K/yr456K searches / yr
- 90-day growth
- -24.6%search demand this quarter
- Competition
- 54%top-5 click share · 15 brands · 16 sellers
Flapen Score
Demon Slayer Birthday Decorations against its category
The dotted line is the Home & Kitchen average. Past it, Demon Slayer Birthday Decorations is stronger. Inside it, weaker.
Market
The Demon Slayer Birthday Decorations market on Amazon at a glance
Shoppers on Amazon United States searched for Demon Slayer Birthday Decorations 456K times last year and spent an estimated $280K. The top 5 brands take 83% of clicks. Demand peaks in Sep–Oct. Flapen scores it 49 out of 100, a Fail.
01 · Demand
An estimated 3.3% of those searches ended in a purchase.
Shoppers searched for this 456K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 3.3% of those searches ended in a purchase. Searches in the last 90 days moved -24.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $280K a year.
- Searches, last 12 months
- 456K
- Growth, 90 days vs prior 90
- -24.6%
- Conversion, latest week
- 3.3%
- Market size, estimated
- $280Ka year
- Peak month
- September2.5× the quietest month
- Top search term
- demon slayer birthday decorations154K searches a year
02 · Price
A sale here is worth $18.38.
Listings sell for $18.38 on average, from $6.95 to $36.79. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 250 to 500 of them. At $18.38 that is $5K to $9K a year per listing.
- Average price
- $18.38inside the $15 to $100 sweet spot
- Price range
- $6.95–$36.79
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $5K–$9K
- Returns
- 1.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
54% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 8.5% of listings are out of stock. The average listing ranks #2,484 within Party Packs. It carries 56 reviews at 4.57 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 54%
- Prime listings
- 100%
- Out of stock, average day
- 8.5%
- Average rank
- #2,484in Party Packs
- Average rating
- 4.57 starsAmazon United States average 4.42 stars
- Average reviews
- 56per listing
- Listings tracked
- 26
04 · Newcomers
6 of last year's 20 launches cleared the first-year sales bar.
20 products launched here in the last 12 months. 6 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 22 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 20
- Successful launches
- 6Amazon's first-year sales bar
- Average brand age
- 22 months
Products
Top Demon Slayer Birthday Decorations products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 23, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
demon birthday party decorationsAnime theme party supplies Including banners balloons tablecloths dinner plates etc.
- Price
- $35.22
- Rating
- 4.7/5
- Reviews
- 95
- Age
- 11mo ago

132Pcs Demon-themed birthday party decorations and party supplies cake toppers spiral hangings dinner plates tablecloths stickers
- Price
- $32.74
- Rating
- 4.7/5
- Reviews
- 111
- Age
- 1y ago

Demon Birthday Decorations Slayer Party Supplies Include Happy Birthday Banner Cake Topper and Cupcake Toppers Balloons for Kids Party Decor
- Price
- $21.94
- Rating
- 4.6/5
- Reviews
- 19
- Age
- 8mo ago

25pcs Demon Cake Decorations with 1pcs Cake Topper 24pcs Cupcake Toppers for Slayer Birthday Party Supplies
- Price
- $12.96
- Rating
- 4.7/5
- Reviews
- 36
- Age
- 8mo ago

Babymiu Anime Birthday Party Decoration Pack with Tapestry43pcsIncludes Cake Toppers Cupcake Toppers Balloons Banner Party Supplies Favors Merch For Adults Boys Girls Teens
- Price
- $25.86
- Rating
- 4.2/5
- Reviews
- 8
- Age
- 11mo ago
Trending
estimated 90-day click momentum
30pcs Demon Cake Decorations with 30pcs Cupcake Toppers Party Supplies for Slayer Themed Birthday Decorations
- Price
- $9.99
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 2mo ago

139 PCS Anime Party Decorations Set with Banner Balloons Hanging Swirl Stickers Tablecloth Tableware for Adult Theme Party Supplies
- Price
- $17.59
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 2mo ago

24Pcs Demon Themed Birthday Decorations Anime Party Supplies.Party Popcorn Boxes.
- Price
- $10.28
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 4mo ago

Jinrea Popular Anime Birthday Number 11 Candles Comic Book Themed Candles Anime-Themed Decorations Suitable for Party Celebrations Birthday Decorations11
- Price
- $9.00
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 3mo ago

120PCS Demon Anime Party Supplies for Boy Girls Kids Cartoons Birthday Party Decorations Tableware Set Plates Napkins Cups Set for 20 Guests
- Price
- $17.79
- Rating
- 4.8/5
- Reviews
- 268
- Age
- 6mo ago
Newest
by launch date
30pcs Demon Cake Decorations with 30pcs Cupcake Toppers Party Supplies for Slayer Themed Birthday Decorations
- Price
- $9.99
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 2mo ago

139 PCS Anime Party Decorations Set with Banner Balloons Hanging Swirl Stickers Tablecloth Tableware for Adult Theme Party Supplies
- Price
- $17.59
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 2mo ago

Jinrea Popular Anime Birthday Number 11 Candles Comic Book Themed Candles Anime-Themed Decorations Suitable for Party Celebrations Birthday Decorations11
- Price
- $9.00
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 3mo ago

24Pcs Demon Themed Birthday Decorations Anime Party Supplies.Party Popcorn Boxes.
- Price
- $10.28
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 4mo ago

120PCS Demon Anime Party Supplies for Boy Girls Kids Cartoons Birthday Party Decorations Tableware Set Plates Napkins Cups Set for 20 Guests
- Price
- $17.79
- Rating
- 4.8/5
- Reviews
- 268
- Age
- 6mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 54% of clicks. Leaders hold, but buyers still shop past them.
Brands
15 rising
Sellers
16
Est. top-5 brand share
83%
Top 20: 100%
Est. top-5 click share
54%
Top 20: 93%
Open market
14%
- Generic35%
- SDONY33%
- Babymiu6%
- deenor5%
- Jinrea4%
- Quatrely3%
- Open — no brand owns it (9 brands, 14%)
Demand
Demon Slayer Birthday Decorations search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Sep, Oct · busiest ÷ quietest = 2.5×
Search terms
Top Demon Slayer Birthday Decorations search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- demon slayer birthday decorations154K/yr
- demon slayer party decorations61K/yr
- demon slayer cake topper39K/yr
- demon slayer birthday30K/yr
- demon slayer party favors30K/yr
- demon slayer decorations20K/yr
- demon slayer party21K/yr
- nezuko birthday decorations11K/yr
- demon slayer balloons14K/yr
- demon slayer cake decorations14K/yr
Reviews and returns
What reviews say buyers love and hate about Demon Slayer Birthday Decorations
We read the reviews and the return reasons for every product selling here.
“I mean the fact that its low quality might make it funnier”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Demon Slayer Birthday Decorations questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









