---
title: "One Expensive Mistake — Roblox UGC Limited"
description: "One Expensive Mistake is a Roblox UGC Limited (Back Accessory) by reddi41's Fan Group. RAP 0 R$."
url: "https://rbxinvest.com/item/18197918389"
type: "roblox-limited-item"
asset_id: "18197918389"
item_type: "ugc_limited"
asset_type: "BackAccessory"
creator: "reddi41's Fan Group"
creator_id: "4936182"
rap: 0
original_price: 0
total_quantity: 50
copies_remaining: 11
sales_30d: 0
created_on: "2024-06-25"
currency: "ROBUX"
data_as_of: "September 6, 2026"
source: "RBX Invest"
---

# One Expensive Mistake

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One Expensive Mistake is a Roblox UGC Limited back accessory by reddi41's Fan Group. 11 of 50 original copies are still on sale from the creator for free, about 78% of the stock claimed. No copies are listed for resale, and its RAP stands at 0 R$. RBX Invest has tracked no sales of it in the past 30 days. It was created on Roblox on Jun 25, 2024. reddi41's Fan Group is a Roblox group rather than an individual user. RAP is Recent Average Price, the Roblox-published rolling average of recent sale prices. Figures as of September 6, 2026.

| Field | Value |
| --- | --- |
| RAP | 0 R$ |
| Original price | 0 R$ |
| Total quantity | 50 |
| Original copies remaining | 11 |
| Sales (last 30 days) | 0 |
| Created on Roblox | Jun 25, 2024 |
| Favorites | 82 |
| Item type | UGC Limited |
| Category | Back Accessory |
| Creator | reddi41's Fan Group |

## Item description

This is the description text Roblox carries for the item, quoted verbatim:

> (This was earned by a puzzle) (Not available to earn anymore)
> 
> This is one expensive mistake to make.
> 
> Might be Roblox's fault or the user's? 
> 
> Simply double-check Before you publish. You will only get 3 options of sale locations By default. 
> 
> marketplace and all experiences ❌
> marketplace only ❌
> marketplace and experiences by id ❌
> 
> The option you're looking for is
> 
> experiences and dev API only ✅
> 
> This option only appears if you select "limited"
> 
> So slow down and double-check everything or you have quite the problem.

## Collections this item belongs to

- [UGC Limited Wings, Capes & Packs Ranked by RAP](https://rbxinvest.com/collections/ugc-limited-back-accessories) (HTML only)
- [Low-Supply Roblox Limiteds — Under 100 Copies in Existence](https://rbxinvest.com/collections/limiteds-under-100-copies) (HTML only)
- [Roblox Limiteds under 1,000 Copies — Scarce but Tradable](https://rbxinvest.com/collections/limiteds-under-1000-copies) (HTML only)
- [Free Roblox Limiteds — Free-to-Claim Items That Now Trade](https://rbxinvest.com/free-roblox-limiteds) (HTML only)

## More Limiteds by reddi41's Fan Group

- [Noir — RAP 1,798 R$](https://rbxinvest.com/item/17325419721.md)
- [Blanc — RAP 325 R$](https://rbxinvest.com/item/17325429892.md)
- [Equinox Pixel Horns — RAP 286 R$](https://rbxinvest.com/item/17787402209.md)
- [Noir Floating Crown — RAP 149 R$](https://rbxinvest.com/item/18526249970.md)
- [Crimson — RAP 134 R$](https://rbxinvest.com/item/18580133329.md)
- [Equinox Boximus  — RAP 103 R$](https://rbxinvest.com/item/17661733671.md)
- [Egg Test — RAP 100 R$](https://rbxinvest.com/item/17488479595.md)
- [Crimson Scythe — RAP 21 R$](https://rbxinvest.com/item/134339953851531.md)
- [Crimson Hair — RAP 9 R$](https://rbxinvest.com/item/18585081198.md)
- [Outlined Boximus — RAP 0 R$](https://rbxinvest.com/item/17572304823.md)

## Related pages

- [reddi41's Fan Group — full catalog](https://rbxinvest.com/creator/4936182.md)
- [Roblox Limiteds leaderboard](https://rbxinvest.com/items.md)
- [Browse Limiteds by category, price, and rarity](https://rbxinvest.com/collections) (HTML only)

---

Source: [RBX Invest](https://rbxinvest.com/item/18197918389) — independent Roblox Limited analytics, not affiliated with Roblox Corporation. RAP and reseller figures are read from Roblox and refreshed continuously; treat them as recent, not live.