8th birthday decorations for girls
Skip itA small market ($48K/yr) — this niche doesn't clear our bar today.
Returns
Great1.3%return rate — above 5% kills the launch gate
Review moat
Good1,370.22avg incumbent reviews — the moat a new listing must climb
Avg price
Okay$11.60avg listing price — sweet spot $15–$100
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Conversion
Okay2.8%search→purchase rate — share of searches ending in a sale
Price range
Okay$5.93–$19.74cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+1.9%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Competition
Bad83%top-5 click share — a locked-up shelf
Market size
Bad$48K$48K/yr · 146K searches
According to Flapen's Amazon United States niche tracking, 8th birthday decorations for girls is a $48K/yr Amazon United States market (146K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Jan. Verdict: Skip it — 33/100.
Data updated Jul 13, 2026 · scored weekly · How we score niches
8th birthday decorations for girls market data
- Units sold / yr
- 5K–6K
- avg 100–250/product
- Revenue / yr
- $58K–$70K
- units × avg price
- Conversion rate
- 2.8%
- Avg BSR
- #260
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 89%
- Out of stock
- 2.7%
- Avg brand age
- 23 months
- Avg seller age
- 176 days
Competition & brand share
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 falling
Sellers
11
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
83%
Top 20: 100%
Open market
12%
- CIEHER56%
- Juesly10%
- Plzaxou6%
- IDIJOLI6%
- Vibzox6%
- SEDECIDE5%
- Open — no brand owns it (3 brands, 12%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +1.9% search growth over the last 90 days.Peak months: Jan · busiest ÷ quietest = 2.0×
Top 8th birthday decorations for girls search terms
- 8th birthday31K/yr
- 8 year old birthday decorations22K/yr
- 8th birthday girl17K/yr
- happy 8th birthday girl17K/yr
- 8th birthday decorations13K/yr
- 8 birthday decorations girl11K/yr
- girls 8th birthday decorations8K/yr
- great to be 8 birthday decorations girl6K/yr
- 8 birthday6K/yr
- birthday girl 85K/yr
Top 8th birthday decorations for girls 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 9 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
CIEHER 8th Birthday Crown + 8th Birthday Sash + Pearl Pin Set 8th Birthday Gifts for Girls Its My 8th Birthday Decorations Women Happy 8th Birthday Party Supplies
CIEHER$9.734.8★6,317 rev
Juesly 8 Year Old Girl Birthday Gifts with Socks and 3D Pop Up Greeting Card Top Gifts for 8th Birthday Girl
Juesly$9.474.8★834 rev
Plzaxou 8th Birthday Party Decorations for Girls Pink Glitter Great to Be Eight Banner Girls 8 Years Old Birthday Party Decorations Supplies
Plzaxou$8.514.4★18 rev
IDIJOLI Pastel Macaron 8th Birthday Candle Sweet Pink Number 8 Candle Cake Topper Cupcake Decorations for Girls and Women Party Decor Anniversary Celebrations Supplies
IDIJOLI$5.934.8★216 rev
8th Birthday Decorations for Girl Pink Purple 8th Butterfly Decoration Birthday Balloons Pink Purple Banner Number 8 Balloons Cake Topper Butterfly Party Supplies for Girls
Vibzox$13.944.6★509 rev
Newest
by launch date
8 Year Old Girl Birthday Gift for 8 Years Old Girl Gift Ideas Trendy 8th Birthday Gifts for Girls Popular Girly Gifts for Eight Year Olds Girls Happy 8th Decoration Presents Stuff Accessories Things
YENCHORN$19.74803 rev
IDIJOLI Pastel Macaron 8th Birthday Candle Sweet Pink Number 8 Candle Cake Topper Cupcake Decorations for Girls and Women Party Decor Anniversary Celebrations Supplies
IDIJOLI$5.93216 rev
GLIGLITTR Birthday Girl Shirt 6th 7th 8th 9th Girls Birthday Tshirt Kids Bday Party Outfit Sequin Glitter Embroidery Tee Tops(Pink 8Y)
GLIGLITTR$17.30134 rev
Plzaxou 8th Birthday Party Decorations for Girls Pink Glitter Great to Be Eight Banner Girls 8 Years Old Birthday Party Decorations Supplies
Plzaxou$8.5118 rev
8th Birthday Decorations for Girl Pink Purple 8th Butterfly Decoration Birthday Balloons Pink Purple Banner Number 8 Balloons Cake Topper Butterfly Party Supplies for Girls
Vibzox$13.94509 rev
Trending
90-day click momentumGLIGLITTR Birthday Girl Shirt 6th 7th 8th 9th Girls Birthday Tshirt Kids Bday Party Outfit Sequin Glitter Embroidery Tee Tops(Pink 8Y)
GLIGLITTR$17.304.8★
Juesly 8 Year Old Girl Birthday Gifts with Socks and 3D Pop Up Greeting Card Top Gifts for 8th Birthday Girl
Juesly$9.474.8★
IDIJOLI Pastel Macaron 8th Birthday Candle Sweet Pink Number 8 Candle Cake Topper Cupcake Decorations for Girls and Women Party Decor Anniversary Celebrations Supplies
IDIJOLI$5.934.8★
8 Year Old Girl Birthday Gift for 8 Years Old Girl Gift Ideas Trendy 8th Birthday Gifts for Girls Popular Girly Gifts for Eight Year Olds Girls Happy 8th Decoration Presents Stuff Accessories Things
YENCHORN$19.744.8★
CIEHER 8th Birthday Crown + 8th Birthday Sash + Pearl Pin Set 8th Birthday Gifts for Girls Its My 8th Birthday Decorations Women Happy 8th Birthday Party Supplies
CIEHER$9.734.8★
What buyers say about 8th birthday decorations for girls
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality birthday decorations”
“Loved it was worth the cost of it”
“My daughter loved the gift”
“Great fit”
“Just as the picture”
“lasting durability”
“It has some weight to it”
“So Fun and Bright”
“pretty and fun”
“Well made and adjustable”
What buyers complain about
“Bad quality”
“The metallic balloons smelled like fish which made the rest of the package smell like fish as well”
“Water bottle leaks”
Top return reasons
Common questions
- Is 8th birthday decorations for girls profitable to sell on Amazon United States?
- The niche generates $48K/yr across 9 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +1.9%. Flapen's verdict: Skip it (33/100).
- How competitive is the 8th birthday decorations for girls niche?
- 9 brands and 11 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in 8th birthday decorations for girls?
- Top complaints mined from reviews: Quality-Overall, Smell, Leak-Proof. The return rate is 1.3%.
- When does demand for 8th birthday decorations for girls peak?
- Demand peaks in Jan; the busiest month runs 2.0× the quietest.
- What does it cost to enter the 8th birthday decorations for girls niche?
- Listings span $5.93–$19.74; the average listing price is $11.60 (sweet spot $15–$100). The average incumbent carries 1,370 reviews — the moat a new listing must climb.