grinch party supplies
Skip itWeak search conversion (1.9%) — this niche doesn't clear our bar today.
Review moat
Great364avg incumbent reviews — the moat a new listing must climb
Brand share
Great59%top-5 brand share — no brand owns this niche
Avg price
Good$12.67avg listing price — sweet spot $15–$100
Competition
Good53%top-5 click share — leaders hold, buyers still browse
Returns
Okay3.5%return rate — above 5% kills the launch gate
Price range
Okay$2.48–$22.76cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+8.9%90-day search growth — must beat 0% to launch
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$98K$98K/yr · 413K searches
Conversion
Bad1.9%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, grinch party supplies is a $98K/yr Amazon United States market (413K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 43/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
grinch party supplies market data
- Units sold / yr
- 10K–13K
- avg 100–250/product
- Revenue / yr
- $127K–$158K
- units × avg price
- Conversion rate
- 1.9%
- Avg BSR
- #3,384
- Page quality
- 0%
- Prime
- 90%
- Sponsored
- 52%
- Out of stock
- 23.9%
- Avg brand age
- 30 months
- Avg seller age
- 171 days
Competition & brand share
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.Brands
18 falling
Sellers
33
Top-5 brand share
59%
Top 20: 100%
Top-5 click share
53%
Top 20: 99%
Open market
36%
- UNJUICE28%
- The Grinch9%
- Generic9%
- Anagram7%
- kingmagnate7%
- TC.ES5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +8.9% search growth over the last 90 days.Peak months: Nov, Dec · busiest ÷ quietest = 46.1×
Top grinch party supplies search terms
- grinch birthday party decorations116K/yr
- grinch birthday29K/yr
- grinch birthday decorations51K/yr
- grinch party supplies77K/yr
- the grinch birthday party supplies11K/yr
- twoville grinch birthday decor7K/yr
- grinch birthday party10K/yr
- grinch christmas decorations party25K/yr
- grinch christmas party supplies12K/yr
- grinch birthday decor6K/yr
Top grinch party supplies 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 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
208Pcs Green Monster Christmas party decoration holiday decorations for families schools and offices Monster birthday party decorations. (green)
UNJUICE$15.924.5★79 rev

Grinch Christmas Naughty & Nice Party Supply Set - Disposable Paper Desert Plates - Serves 16
The Grinch$10.004.6★464 rev

Birthday Party Supplies Set Party Decorations Including Banners Balloons Backdrop Tablecloth Hanging Swirl Decorations Large Power Strip Cupcake Toppers
Generic$19.774.6★11 rev

Merry Christmas Birthday Banner No DIY Glittery Happy Xmas Themed Party Decorations Red and Green December Party Supplies
TC.ES$9.833.9★9 rev

How The Grinch Stole Christmas Super Shape Foil Balloon
Anagram$9.594.8★881 rev
Newest
by launch date
kingmagnate Christmas Grinches Popular Stickers 16 Sheets Make a Your Own Face Stickers Xmas DIY Crafts Party Favor Supplies for Teens Girls Boys Christmas Decorations (GR)
kingmagnate$6.6514 rev

55pcs Christmas Grinches Popular Stickers for Kids Childrens Cartoon Sticker for Water Bottle Laptop Waterproof Vinyl Decals for Teens Girls Boys (Green-B)
kingmagnate$7.91147 rev

Birthday Party Supplies Set Party Decorations Including Banners Balloons Backdrop Tablecloth Hanging Swirl Decorations Large Power Strip Cupcake Toppers
Generic$19.7711 rev

50 PCS Edible Christmas Cupcake Toppers Green Monster Man Cake Toppers Wafer Paper Christmas Birthday Decorations for Edible Merry Xmas Theme Baby Shower Birthday Party Cake Decorations Supplies
LcingTify$7.6930 rev

101 PCS Grinchmas Plate Set Christmas Tableware Set for Christmas Party Supplies Birthday Party Decoration
Generic$22.39109 rev
Trending
90-day click momentum
kingmagnate Christmas Grinches Popular Stickers 16 Sheets Make a Your Own Face Stickers Xmas DIY Crafts Party Favor Supplies for Teens Girls Boys Christmas Decorations (GR)
kingmagnate$6.654.5★

Grinch Christmas Naughty & Nice Party Supply Set - Disposable Paper Desert Plates - Serves 16
The Grinch$10.004.6★

TUPARKA 12 Pack Sunglasses Bulk Summer Sunglasses Party Favors Goody Bag Fillers for Birthday Party Beach Pool Party Green
TUPARKA$12.534.7★

Vagilelf 2 Pack Lime Green Party Decorations Tinsel Foil Fringe Backdrop 3.3x6.6 Durable Metallic Tassel Create Photo Booth & Entrance for Margaritas Party Decorations
Vagilelf$7.694.6★

50 PCS Edible Christmas Cupcake Toppers Green Monster Man Cake Toppers Wafer Paper Christmas Birthday Decorations for Edible Merry Xmas Theme Baby Shower Birthday Party Cake Decorations Supplies
LcingTify$7.694.5★
What buyers say about grinch party supplies
What buyers praise and complain about, mined from review topics.What buyers love
“lots of variety”
“Good size”
“Love the color”
“Pretty durable”
“As expected”
“Worth it”
“The adhesive strip stuck well over the door frame for the duration of the event”
“Easy installation”
“GreatMy grandson carry it everywhere”
“Strong and sturdy”
What buyers complain about
“Product was cheap”
“Youll get it cheaper”
“Napkins were a bit stiff”
“Bigger than I knew”
“but very dry foam textured”
“Product was used”
“Not Weatherproof unfortunately”
“It was kind of difficult to blow up”
“Very thin and flimsy”
“There was a slight plastic-y smell when I opened the package”
Top return reasons
Common questions
- Is grinch party supplies profitable to sell on Amazon United States?
- The niche generates $98K/yr across 21 tracked products. 2 of 7 products launched in the last 360 days are still selling. 90-day search growth is +8.9%. Flapen's verdict: Skip it (43/100).
- How competitive is the grinch party supplies niche?
- 18 brands and 33 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 59% of demand.
- What do buyers complain about in grinch party supplies?
- Top complaints mined from reviews: Quality-Overall, Value For Money, Hard Feel. The return rate is 3.5%.
- When does demand for grinch party supplies peak?
- Demand peaks in Nov–Dec; the busiest month runs 46.1× the quietest.
- What does it cost to enter the grinch party supplies niche?
- Listings span $2.48–$22.76; the average listing price is $12.67 (sweet spot $15–$100). The average incumbent carries 364 reviews — the moat a new listing must climb.