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51

mario party decorations

Worth a look

Shows a thin review moat (34 avg reviews), but prices mostly outside the sweet spot ($4.28–$15.16) keeps it on the watch list.

Market size 6Growth 57Conversion 45Competition 56Returns 97Price range 1Avg price 26Brand share 79Review moat 98Quality gap 45

Review moat

Incredible33.57

avg incumbent reviews — the moat a new listing must climb

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Brand share

Great56%

top-5 brand share — no brand owns this niche

Growth

Good+30.9%

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

Competition

Good51%

top-5 click share — leaders hold, buyers still browse

Conversion

Okay3.6%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Avg price

Okay£9.07

avg listing price — sweet spot $15–$100

Market size

Bad£25K

£25K/yr · 79K searches

Price range

Bad£4.28–£15.16

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

According to Flapen's Amazon United Kingdom niche tracking, mario party decorations is a £25K/yr Amazon United Kingdom market (79K searches/yr). The top 5 brands hold 56% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 51/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

mario party decorations market data

Units sold / yr
3K–4K
avg 0–100/product
Revenue / yr
£27K–£36K
units × avg price
Conversion rate
3.6%
Avg BSR
#709
Page quality
0%
Prime
100%
Sponsored
93%
Out of stock
18.7%
Avg brand age
32 months
Avg seller age
185 days

Competition & brand share

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 rising

Sellers

21

Top-5 brand share

56%

Top 20: 100%

Top-5 click share

51%

Top 20: 90%

Open market

38%

  • Sovanna18%
  • Luclay16%
  • Aisszhao9%
  • Ainvliya7%
  • Heartsking6%
  • CHUKUA6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +30.9% search growth over the last 90 days.
4K3KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, May · busiest ÷ quietest = 3.4×

Top mario party decorations search terms

  • super mario birthday decorations18K/yr
  • mario birthday decorations21K/yr
  • mario party decorations16K/yr
  • super mario party decorations10K/yr
  • mario birthday banner4K/yr
  • mario decorations5K/yr
  • mario birthday4K/yr
All search terms

Top mario party 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%5%£1K10%£3K15%£4K20%£5K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about mario party decorations

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

What buyers love

Quality-Overall38%

“Good quality”

Size-Overall13%

“Good size”

Durability10%

“lasted up to a week”

Assembly/Installation10%

“easy to put together”

Adhesion/Stickiness10%

“there are no issues with stickiness”

Color3%

“Brilliant product, the quality of the colour is amazing”

Value For Money3%

“great value for money”

What buyers complain about

Inflation/Deflation30%

“Baloons deflated quickly”

Value For Money21%

“also expensive for nothing”

Quality-Overall17%

“Not great quality”

Size-Overall14%

“bigger then I imaged”

Strength5%

“was very flimsy”

Durability3%

“They done the job for the day just didn't last much longer”

Stretchability/Expandability/Elasticity3%

“Slightly stretched and a tad pricey”

Top return reasons

Size-Overall49%
Quality-Overall20%
Material Quality8%
Advertised Vs Actual Product5%
Inflation/Deflation4%
Ease Of Use4%
Mounting3%
Value For Money3%
Smell3%
Ease Of Cleaning1%

Common questions

Is mario party decorations profitable to sell on Amazon United Kingdom?
The niche generates £25K/yr across 28 tracked products. 0 of 8 products launched in the last 360 days are still selling. 90-day search growth is +30.9%. Flapen's verdict: Worth a look (51/100).
How competitive is the mario party decorations niche?
18 brands and 21 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 56% of demand.
What do buyers complain about in mario party decorations?
Top complaints mined from reviews: Inflation/Deflation, Value For Money, Quality-Overall. The return rate is 0.7%.
When does demand for mario party decorations peak?
Demand peaks in Apr–May; the busiest month runs 3.4× the quietest.
What does it cost to enter the mario party decorations niche?
Listings span £4.28–£15.16; the average listing price is £9.07 (sweet spot $15–$100). The average incumbent carries 34 reviews — the moat a new listing must climb.