Skip to content

12th Birthday Decorations

Maybe

An estimated 0.5% of orders come back. But prices span $2.75–$16.89, mostly outside the sweet spot, so 12th Birthday Decorations is a Maybe.

Flapen Score
58
58 / 100
Top 23% of 5,777 Home & Garden niches · +7 vs the category median of 51
Market size
£63K/yr136K searches / yr
90-day growth
-3.8%search demand this quarter
Competition
17%top-5 click share · 60 brands · 92 sellers

Flapen Score

12th Birthday Decorations against its category

The dotted line is the Home & Garden average. Past it, 12th Birthday Decorations is stronger. Inside it, weaker.

58Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The 12th Birthday Decorations market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for 12th Birthday Decorations 136K times last year and spent an estimated £63K. The top 5 brands take 44% of clicks. Demand peaks in Jan. Flapen scores it 58 out of 100, a Maybe.

01 · Demand

An estimated 5.9% of those searches ended in a purchase.

Shoppers searched for this 136K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 5.9% of those searches ended in a purchase. Searches in the last 90 days moved -3.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated £63K a year.

Searches, last 12 months
136K
Growth, 90 days vs prior 90
-3.8%
Conversion, latest week
5.9%
Market size, estimated
£63Ka year
Peak month
January2.0× the quietest month
Top search term
12th birthday decorations44K searches a year

02 · Price

A sale here is worth £7.96.

Listings sell for £7.96 on average, from £2.75 to £16.89. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 0 to 100 of them. At £7.96 that is £0 to £796 a year per listing.

Average price
£7.96under the $15 to $100 sweet spot
Price range
£2.75–£16.89
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
6K–8K
Units per listing a year
0–100
Revenue per listing a year
£0–£796
Returns
0.5%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is ads.

94% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 10.0% of listings are out of stock. The average listing ranks #1,063 within Party Supplies. It carries 190 reviews at 4.41 stars, so a new listing needs social proof before a better product.

Sponsored listings
94%
Prime listings
100%
Out of stock, average day
10.0%
Average rank
#1,063in Party Supplies
Average rating
4.41 starsAmazon United Kingdom average 4.36 stars
Average reviews
190per listing
Listings tracked
133

04 · Newcomers

1 of last year's 65 launches cleared the first-year sales bar.

65 products launched here in the last 12 months. 1 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
65
Successful launches
1Amazon's first-year sales bar
Average brand age
22 months

Products

Top 12th 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 27, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 17% of clicks, no more. An open shelf where new products get seen.

£0£632£1K£2K£3K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

60 rising

Sellers

92

Est. top-5 brand share

44%

Top 20: 82%

Est. top-5 click share

17%

Top 20: 43%

Open market

50%

  • JGIIIJLP10%
  • Aurmonigo10%
  • FSADASY10%
  • VUCDXOP8%
  • OakTree7%
  • Sroeeshee5%

Demand

12th Birthday Decorations search demand

Weekly searches over the year, seasonality beneath. Pick a range.

4K3KSpike '25Spike '26AprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Jan · busiest ÷ quietest = 2.0×

Search terms

Top 12th Birthday Decorations search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • 12th birthday decorations44K/yr
  • 12 birthday decorations24K/yr
  • 12th birthday decorations boy16K/yr
  • 12th birthday14K/yr
  • 12th birthday decorations for girls8K/yr
  • 12th birthday banner8K/yr
  • 12 year old birthday decorations6K/yr
  • happy 12th birthday banner6K/yr
  • 12 birthday5K/yr
  • 12 birthday banner4K/yr

Reviews and returns

What reviews say buyers love and hate about 12th Birthday Decorations

We read the reviews and the return reasons for every product selling here.

26%of positive reviews mention “Quality-Overall”
28%of negative reviews mention “Quality-Overall”
0.5%of orders come back
“Garbage”
A buyer, on “Quality-Overall”28% of negative reviews mention the same topic

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.

17 topics

NegativePositive

FAQ

Common 12th 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