---
title: "Partners in Crime Tumbler — $8K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/partners-in-crime-tumbler"
last_updated: "2026-08-11T20:32:40.542Z"
locale: en
meta:
description: "Niche score 31/100 · $8K/yr market · 50K searches/yr · $15.20 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 31/100 · $8K/yr market · 50K searches/yr · $15.20 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Partners in Crime Tumbler — $8K/yr Amazon US Niche (2026) - Flapen"
---
# **partners in crime tumbler**
**Skip it**
A small market ($8K/yr) — this niche doesn't clear our bar today.
Market size 2Growth 7Conversion 14Competition 19Returns 96Price range 58Avg price 76Brand share 29Review moat 73Quality gap 24
**Returns**
**Incredible****0.9%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$15.20**
avg listing price — sweet spot $15–$100
**Review moat**
**Good****570.77**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$4.97–$29.09**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****88%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****77%**
top-5 click share — a locked-up shelf
**Conversion**
**Bad****1.1%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-36.8%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$8K**
$8K/yr · 50K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, partners in crime tumbler is a $8K/yr Amazon United States market (50K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Feb–Dec. Verdict: Skip it — 31/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **partners in crime tumbler market data**
- **Units sold / yr**
- **250–500**
- avg 0–100/product
- **Revenue / yr**
- **$4K–$8K**
- units × avg price
- **Conversion rate**
- **1.1%**
- **Avg BSR**
- **#4,410**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **85%**
- **Out of stock**
- **10.9%**
- **Avg brand age**
- **36 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▼falling
**Sellers**
**24**
**Top-5 brand share**
**88%**
Top 20: 100%
**Top-5 click share**
**77%**
Top 20: 100%
**Open market**
**12%**
- HOFOYA44% - 34HD16% - Desimtion13% - Ptikx5% - Pavilion Gift Company5% - JoycuFF5% - Open — no brand owns it (4 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -36.8% search growth over the last 90 days.
2K2KBlack Friday '24Holiday '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb, Dec · busiest ÷ quietest = 2.4×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/partners-in-crime-tumbler/trend)
## **Top partners in crime tumbler search terms**
- **partners in crime**36K/yr-39.0%0.0% conv. - **partner in crime gifts**5K/yr+5.9%1.2% conv. - **partners in crime gifts**7K/yr-52.8%1.2% conv. - **partners in crime tumbler**1K/yr-20.9%1.4% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/partners-in-crime-tumbler/search-terms)
## **Top partners in crime tumbler 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%15%$1K30%$3K45%$4K60%$5K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**2Pcs Partners in Crime Split Heart BFF Necklaces Friendship Gift for Women**HOFOYA**$13.58**4.0★21 rev](https://www.amazon.com/dp/B08C318X4B) [2**Desimtion Friendship Bracelets for Women Partners in Crime Handcuff Matching Bracelets Funny Best Friend Birthday Gifts for Women Unique BFF Bracelets for 2**Desimtion**$9.91**4.4★2,245 rev](https://www.amazon.com/dp/B08XQ7QWC2) [3**34HD Partners in Crime Tumbler with Handle and Straw 40oz Stainless Steel Bestie Drinking Cup BFF Coffee Mug Best Friends Gifts for Birthday Christmas Funny Friends Gift Ideas for Women**34HD**$27.53**4.6★235 rev](https://www.amazon.com/dp/B0CYKKQY9Q) [4**Friend Gifts for Women & Men - Funny Partner in Crime Acrylic Sign Decoration for Desk Table Shelf - 4 x 4 Inches**Ptikx**$10.36**4.9★30 rev](https://www.amazon.com/dp/B0D8HYJ368) [5**You Are My Partner In Crime - Raccoon Gray 17oz Dolomite Coffee Cup Mug**Pavilion Gift Company**$17.23**4.6★778 rev](https://www.amazon.com/dp/B07YVQX186)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Funny Valentines Day Gift for Girlfriend Wife Handmade Crochet Raccoon Collectible Figurines with Sign You Are My Partner in Crime Cute Romantic Pocket Hug Token Couple Anniversary Present**Stitch-Witch**$14.18**30 rev1y ago](https://www.amazon.com/dp/B0F3TZ97TC) [**CHOANG Gothic Partners in Crime Tumbler Gift for Best Friend Funny Stainless Steel Travel Mug with Skeleton Hands & Roses Friendship BFF Birthday Christmas Present for Women Girls**CHOANG**$17.37**16 rev1y ago](https://www.amazon.com/dp/B0DYJSZWPR) [**Friend Gifts for Women & Men - Funny Partner in Crime Acrylic Sign Decoration for Desk Table Shelf - 4 x 4 Inches**Ptikx**$10.36**30 rev2y ago](https://www.amazon.com/dp/B0D8HYJ368) [**34HD Partners in Crime Tumbler with Handle and Straw 40oz Stainless Steel Bestie Drinking Cup BFF Coffee Mug Best Friends Gifts for Birthday Christmas Funny Friends Gift Ideas for Women**34HD**$27.53**235 rev2y ago](https://www.amazon.com/dp/B0CYKKQY9Q) [**34HD Partners in Crime Tumbler with Handle and Straw 40oz Stainless Steel Bestie Drinking Cup BFF Coffee Mug Best Friends Gifts for Birthday Christmas Funny Friends Gift Ideas for Women**34HD**$29.09**235 rev2y ago](https://www.amazon.com/dp/B0CY8D25L2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**2Pcs Partners in Crime Split Heart BFF Necklaces Friendship Gift for Women**HOFOYA**$13.58**4.0★**▲ 147%**](https://www.amazon.com/dp/B08C318X4B) [**JoycuFF Partner in Crime Morse Code Bracelets for Women Men Unique Trendy Handmade Silk Wrap Strand Jewelry for Mom Aunt Wife Niece Grandma Daughter Best Friend Sisters Christmas Birthday Day Gifts**JoycuFF**$6.79**4.7★**▲ 118%**](https://www.amazon.com/dp/B0957TZ417) [**34HD Partners in Crime Tumbler with Handle and Straw 40oz Stainless Steel Bestie Drinking Cup BFF Coffee Mug Best Friends Gifts for Birthday Christmas Funny Friends Gift Ideas for Women**34HD**$27.53**4.6★**— 9%**](https://www.amazon.com/dp/B0CYKKQY9Q) [**JoycuFF Partner in Crime Morse Code Bracelets for Best Friend Mom Coworker Sister Daughter Inspirational Birthday Mothers Thanksgiving Day Gifts for Women Fashion Silver Chain Bracelet**JoycuFF**$12.74**4.6★**— 2%**](https://www.amazon.com/dp/B08XTKCH6M) [**Friend Gifts for Women & Men - Funny Partner in Crime Acrylic Sign Decoration for Desk Table Shelf - 4 x 4 Inches**Ptikx**$10.36**4.9★**— 8%**](https://www.amazon.com/dp/B0D8HYJ368)
**~~View all trending →~~**
## **What buyers say about partners in crime tumbler**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Gifting Purpose**29%
*“Cute gift”*
**Quality-Overall**25%
*“Great quality cup”*
**Size-Overall**10%
*“Size fits all”*
**Strength**8%
*“Not flimsy”*
**Durability**7%
*“Very durable - was a bit worried that Id loose the key chain because its so dainty”*
**Advertised Vs Actual Product**3%
*“As described”*
**Color**3%
*“Color is right”*
**Temperature Retention**3%
*“Definitely keeps drinks to temps”*
**Ease Of Cleaning**3%
*“cleans like a normal mug”*
**Value For Money**1%
*“Great value for the money”*
### **What buyers complain about **
**Advertised Vs Actual Product**27%
*“This item does not look like the picture”*
**Quality-Overall**20%
*“Cheaply made”*
**Size-Overall**5%
*“A little smaller than I thought”*
**Heating**4%
*“The outside doesnt get super hot when you put a hot beverage in it”*
### **Top return reasons **
**Size-Overall**38%
**Advertised Vs Actual Product**25%
**Shape/Style**13%
**Quality-Overall**13%
**Defective Material/Parts**13%
## **Common questions**
- **Is partners in crime tumbler profitable to sell on Amazon United States?**
- The niche generates $8K/yr across 13 tracked products. 90-day search growth is -36.8%. Flapen's verdict: Skip it (31/100).
- **How competitive is the partners in crime tumbler niche?**
- 10 brands and 24 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 88% of demand.
- **What do buyers complain about in partners in crime tumbler?**
- Top complaints mined from reviews: Advertised Vs Actual Product, Quality-Overall, Size-Overall. The return rate is 0.9%.
- **When does demand for partners in crime tumbler peak?**
- Demand peaks in Feb–Dec; the busiest month runs 2.4× the quietest.
- **What does it cost to enter the partners in crime tumbler niche?**
- Listings span $4.97–$29.09; the average listing price is $15.20 (sweet spot $15–$100). The average incumbent carries 571 reviews — the moat a new listing must climb.
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