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11th birthday decorations for boys

Worth a look

Shows no brand lock-in (top 5 brands take 30% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 38Growth 23Conversion 66Competition 91Returns 60Price range 50Avg price 62Brand share 96Review moat 71Quality gap 21

Brand share

Incredible30%

top-5 brand share — no brand owns this niche

Competition

Great24%

top-5 click share — an open shelf

Review moat

Good662.69

avg incumbent reviews — the moat a new listing must climb

Conversion

Good5.9%

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

Avg price

Good$13.45

avg listing price — sweet spot $15–$100

Returns

Good2.6%

return rate — above 5% kills the launch gate

Price range

Good$4.95–$25.05

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

Market size

Okay$192K

$192K/yr · 241K searches

Growth

Bad-4.8%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, 11th birthday decorations for boys is a $192K/yr Amazon United States market (241K searches/yr). The top 5 brands hold 30% of demand. Demand peaks in Jul. Verdict: Worth a look — 56/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

11th birthday decorations for boys market data

Units sold / yr
13K–15K
avg 100–250/product
Revenue / yr
$168K–$202K
units × avg price
Conversion rate
5.9%
Avg BSR
#1,842
Page quality
0%
Prime
100%
Sponsored
91%
Out of stock
3.7%
Avg brand age
25 months
Avg seller age
168 days

Competition & brand share

Clicks spread well past the top 5 (24% combined) — an open shelf where new products get seen.

Brands

61 falling

Sellers

70

Top-5 brand share

30%

Top 20: 73%

Top-5 click share

24%

Top 20: 65%

Open market

66%

  • Juesly10%
  • Zirtorei6%
  • Vlipoeasn5%
  • CIEHER5%
  • ZHUOWEISM4%
  • YGCTBVY4%

Demand & seasonality

Weekly Amazon search volume, last 98 weeks — -4.8% search growth over the last 90 days.
5K3KSpike '25Prime Day '25Spike '26Prime Day '26DecMarJunAugNovMarMay

Peak months: Jul · busiest ÷ quietest = 2.6×

Top 11th birthday decorations for boys search terms

  • 11th birthday decorations for boys75K/yr
  • 11 year old boy birthday decorations29K/yr
  • 11 birthday decorations for boys26K/yr
  • 11 year old birthday decorations22K/yr
  • 11th birthday decorations17K/yr
  • happy 11th birthday boy16K/yr
  • bruh im 11 birthday decorations9K/yr
  • 11 birthday decorations11K/yr
  • 11th birthday party decorations9K/yr
  • 11th birthday boy9K/yr
All search terms

Top 11th birthday decorations for boys 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%2%$4K4%$8K6%$12K8%$15K1101001K10K100K 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 buyers say about 11th birthday decorations for boys

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

What buyers love

Quality-Overall17%

“Awesome Quality”

Value For Money12%

“Good value”

Color11%

“Bright colors”

Advertised Vs Actual Product11%

“Better than expected”

Gifting Purpose7%

“Great gift”

Assembly/Installation6%

“Easy to put together”

Size-Overall5%

“Perfect size”

Design-Overall5%

“the appearance was amazing”

Durability4%

“Very durable card”

Ease Of Use3%

“easy to remove”

What buyers complain about

Durability16%

“It breaks very easily”

Quality-Overall16%

“Definitely lower quality”

Size-Overall13%

“The cup is smaller than expected”

Adhesion/Stickiness7%

“The glue did not stick”

Assembly/Installation6%

“Because I do not have them time to assemble before 70 people arrive at our house”

Inflation/Deflation4%

“One star bc Mylar balloon wont stay inflated”

Strength2%

“Very fragile”

Value For Money2%

“Not Worth It”

Smell2%

“only docked one star because it has a slight plastic printing smell on the fabric items which was unpleasant”

Thickness2%

“Not as dense as I wanted them to be”

Top return reasons

Size-Overall22%
Color18%
Value For Money15%
Quality-Overall8%
Advertised Vs Actual Product7%
Defective Material/Parts5%
Assembly/Installation4%
Adhesion/Stickiness2%
Durability2%
Material Quality2%

Common questions

Is 11th birthday decorations for boys profitable to sell on Amazon United States?
The niche generates $192K/yr across 78 tracked products. 3 of 39 products launched in the last 360 days are still selling. 90-day search growth is -4.8%. Flapen's verdict: Worth a look (56/100).
How competitive is the 11th birthday decorations for boys niche?
61 brands and 70 sellers compete. The top 5 products take 24% of clicks and top 5 brands hold 30% of demand.
What do buyers complain about in 11th birthday decorations for boys?
Top complaints mined from reviews: Durability, Quality-Overall, Size-Overall. The return rate is 2.6%.
When does demand for 11th birthday decorations for boys peak?
Demand peaks in Jul; the busiest month runs 2.6× the quietest.
What does it cost to enter the 11th birthday decorations for boys niche?
Listings span $4.95–$25.05; the average listing price is $13.45 (sweet spot $15–$100). The average incumbent carries 663 reviews — the moat a new listing must climb.