---
title: "Sailor Moon Birthday Decorations — $26K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/sailor-moon-birthday-decorations"
last_updated: "2026-08-06T22:27:10.814Z"
locale: en
meta:
description: "Niche score 38/100 · $26K/yr market · 63K searches/yr · $13.59 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 38/100 · $26K/yr market · 63K searches/yr · $13.59 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Sailor Moon Birthday Decorations — $26K/yr Amazon US Niche (2026) - Flapen"
---
# **sailor moon birthday decorations**
**Skip it**
A small market ($26K/yr) — this niche doesn't clear our bar today.
Market size 6Growth 24Conversion 38Competition 24Returns 43Price range 79Avg price 63Brand share 53Review moat 82Quality gap 55
**Review moat**
**Great****368.22**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Great****$6.38–$49.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****$13.59**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****73%**
top-5 brand share — brands hold most of the demand
**Returns**
**Okay****3.6%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****3.0%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-1.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****72%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$26K**
$26K/yr · 63K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, sailor moon birthday decorations is a $26K/yr Amazon United States market (63K searches/yr). The top 5 brands hold 73% of demand. Demand peaks in Aug. Verdict: Skip it — 38/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sailor moon birthday decorations market data**
- **Units sold / yr**
- **1K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$17K–$20K**
- units × avg price
- **Conversion rate**
- **3.0%**
- **Avg BSR**
- **#7,307**
- **Page quality**
- **0%**
- **Prime**
- **83%**
- **Sponsored**
- **61%**
- **Out of stock**
- **2.9%**
- **Avg brand age**
- **37 months**
- **Avg seller age**
- **177 days**
## **Competition & brand share**
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**16 **▼falling
**Sellers**
**22**
**Top-5 brand share**
**73%**
Top 20: 100%
**Top-5 click share**
**72%**
Top 20: 100%
**Open market**
**21%**
- Sacuoskdyu24% - Generic23% - POSLIUE10% - SHOWSUP9% - TTSAM6% - Pink Blume6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -1.8% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug · busiest ÷ quietest = 2.2×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/sailor-moon-birthday-decorations/trend)
## **Top sailor moon birthday decorations search terms**
- **sailor moon birthday decorations**22K/yr+6.1%2.0% conv. - **sailor moon party decorations**10K/yr+46.3%1.9% conv. - **sailor moon birthday**7K/yr+3.6%1.4% conv. - **sailor moon decorations**5K/yr-7.4%1.6% conv. - **sailor moon party**4K/yr-23.4%1.2% conv. - **sailor moon party supplies**6K/yr-53.1%1.8% conv. - **sailor moon party favors**3K/yr-7.8%0.5% conv. - **sailor moon balloons**3K/yr+16.4%1.5% conv. - **sailor moon backdrop**2K/yr-28.7%0.4% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/sailor-moon-birthday-decorations/search-terms)
## **Top sailor moon birthday decorations 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%10%$3K20%$5K30%$8K40%$10K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**42Pcs Sailor Party Supplies Pack IncludesBannerCake Topper Blackdrop Balloons for Moon party Decoration**Sacuoskdyu**$20.93**1.0★1 rev](https://www.amazon.com/dp/B0FKB2FVFR) [2**40Pcs Sailor Party Supplies include 20 plates 20 napkins for the Sailor birthday party decoration**Generic**$15.93**4.8★36 rev](https://www.amazon.com/dp/B0DS1SVBRH) [3**Moon Cat Birthday Cake Topper - Glitter Moon Girls Sailor Party Decorations for Birthday Party Supplies**POSLIUE**$7.98**4.9★13 rev](https://www.amazon.com/dp/B0FCMV8K17) [4**55PCS Sailor Anime Moon Stickers Teens Stickers for Water Bottle Laptop Phone Scrapbooking Journaling for Teens Adults for Party Supply Favor Decor (Gray)**SHOWSUP**$7.01**4.8★47 rev](https://www.amazon.com/dp/B0G6VT7G5Y) [5**50ft Glitter Moon & Stars Garlands 6 Pack Gold Double-Side Crescent and Twinkle Stars Paper Hanging Decorations for Birthday Party Baby Shower Engagement Wedding for Nursery Kids Room Home Bedroom**TTSAM**$6.72**4.6★614 rev](https://www.amazon.com/dp/B07QB63S4L)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Moon Cat Happy Birthday Glitter Cake Topper Moon Girls Sailor Party Decorations**Pezutoi**$7.89**0 rev2mo ago](https://www.amazon.com/dp/B0GZT2XX7L) [**Moon Cat Happy Birthday Cake Topper Glitter Moon Girls Sailor Party Decorations for Birthday**Oelirsy**$7.98**3 rev4mo ago](https://www.amazon.com/dp/B0GR4C7MFB) [**50pcs Sailor Anime Moon Stickers for Water Bottle Waterproof Vinyl Decal for Adult Teen Laptop Skateboard Phone Travel Case Bike Guitar Computer Helmet (red)**MINRAIN**$6.38**35 rev7mo ago](https://www.amazon.com/dp/B0G7SVDFZQ) [**55PCS Sailor Anime Moon Stickers Teens Stickers for Water Bottle Laptop Phone Scrapbooking Journaling for Teens Adults for Party Supply Favor Decor (Gray)**SHOWSUP**$7.01**47 rev7mo ago](https://www.amazon.com/dp/B0G6VT7G5Y) [**42Pcs Sailor Party Supplies Pack IncludesBannerCake Topper Blackdrop Balloons for Moon party Decoration**Sacuoskdyu**$20.93**1 rev11mo ago](https://www.amazon.com/dp/B0FKB2FVFR)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Moon Cat Happy Birthday Glitter Cake Topper Moon Girls Sailor Party Decorations**Pezutoi**$7.89**0.0★**▲ 207%**](https://www.amazon.com/dp/B0GZT2XX7L) [**42Pcs Sailor Party Supplies Pack IncludesBannerCake Topper Blackdrop Balloons for Moon party Decoration**Sacuoskdyu**$20.93**1.0★**▲ 204%**](https://www.amazon.com/dp/B0FKB2FVFR) [**50pcs Sailor Anime Moon Stickers for Water Bottle Waterproof Vinyl Decal for Adult Teen Laptop Skateboard Phone Travel Case Bike Guitar Computer Helmet (red)**MINRAIN**$6.38**4.8★**▲ 184%**](https://www.amazon.com/dp/B0G7SVDFZQ) [**Moon Cat Happy Birthday Cake Topper Glitter Moon Girls Sailor Party Decorations for Birthday**Oelirsy**$7.98**4.6★**▲ 176%**](https://www.amazon.com/dp/B0GR4C7MFB) [**55PCS Sailor Anime Moon Stickers Teens Stickers for Water Bottle Laptop Phone Scrapbooking Journaling for Teens Adults for Party Supply Favor Decor (Gray)**SHOWSUP**$7.01**4.8★**▲ 61%**](https://www.amazon.com/dp/B0G6VT7G5Y)
**~~View all trending →~~**
## **What buyers say about sailor moon birthday decorations**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**15%
*“The stickers themselves are high quality and great scans”*
**Color**12%
*“Bright colors”*
**Size-Overall**8%
*“a good size”*
**Durability**7%
*“they are durable”*
**Embellishment/Embroidery Quality**7%
*“Great addition to other decorations”*
**Design-Overall**7%
*“A great decorative set for celebrations or everyday décor”*
**Adhesion/Stickiness**5%
*“Great adhesion for the stickers”*
**Brightness/Shine/Glow**5%
*“The way they reflected the light gave the whole dinner area a really nice”*
**Value For Money**4%
*“Good for the price”*
**Advertised Vs Actual Product**3%
*“Item as described”*
### **What buyers complain about **
**Assembly/Installation**17%
*“Will require assembly”*
**Ease Of Use**17%
*“it wasnt easy to use”*
**Gifting Purpose**8%
*“Joke gift”*
**Brightness/Shine/Glow**8%
*“Tacky, too shiny”*
**Size-Overall**8%
*“A little smaller than expected”*
**Quality-Overall**8%
*“kinda cheap looking”*
**Thin**3%
*“the material is just as thin or thinner than those regular plastic ones from the dollar tree”*
**Thickness**3%
*“despite the fact that the string was very thin, which my husband struggled with for a few minutes,. having the kids opening them didn't help, ha”*
**Print Quality**2%
*“Print quality could be better”*
### **Top return reasons **
**Size-Overall**27%
**Advertised Vs Actual Product**15%
**Color**14%
**Value For Money**8%
**Quality-Overall**7%
**Material Quality**6%
**Brightness/Shine/Glow**4%
**Defective Material/Parts**4%
**Functionality-Overall**2%
**Strength**2%
## **Common questions**
- **Is sailor moon birthday decorations profitable to sell on Amazon United States?**
- The niche generates $26K/yr across 18 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is -1.8%. Flapen's verdict: Skip it (38/100).
- **How competitive is the sailor moon birthday decorations niche?**
- 16 brands and 22 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 73% of demand.
- **What do buyers complain about in sailor moon birthday decorations?**
- Top complaints mined from reviews: Assembly/Installation, Ease Of Use, Gifting Purpose. The return rate is 3.6%.
- **When does demand for sailor moon birthday decorations peak?**
- Demand peaks in Aug; the busiest month runs 2.2× the quietest.
- **What does it cost to enter the sailor moon birthday decorations niche?**
- Listings span $6.38–$49.99; the average listing price is $13.59 (sweet spot $15–$100). The average incumbent carries 368 reviews — the moat a new listing must climb.
## **Related niches in Home & Kitchen**
- 74 [**graduation centerpieces for tables 2023**](https://flapen.com/research/us/home-kitchen/graduation-centerpieces-for-tables-2023)$368K/yr+228.8%**Worth a look**- 74 [**artificial hanging flowers for outdoors**](https://flapen.com/research/us/home-kitchen/artificial-hanging-flowers-for-outdoors)$1.2M/yr+77.3%**Launch it**- 74 [**5th grade graduation decorations**](https://flapen.com/research/us/home-kitchen/5th-grade-graduation-decorations)$149K/yr+666.7%**Worth a look**- 74 [**green graduation decorations class of 2023**](https://flapen.com/research/us/home-kitchen/green-graduation-decorations-class-of-2023)$190K/yr+184.6%**Worth a look**- 74 [**flowers**](https://flapen.com/research/us/home-kitchen/flowers)$23.3M/yr+5.2%**Launch it**- 74 [**pool towel rack outdoor**](https://flapen.com/research/us/home-kitchen/pool-towel-rack-outdoor)$1.1M/yr+362.1%**Launch it**[**All Home & Kitchen niches **](https://flapen.com/research/us/home-kitchen)