How much is SpongeBob Baby Plankton Keychain worth? Price and value
As of November 7, 2026, SpongeBob Baby Plankton Keychain is worth about 175 Robux, its Recent Average Price (RAP), and the cheapest copy for sale is priced at 190 Robux. Across the 10,000 owned copies, its estimated market value is 1,750,000 Robux.
That puts the cheapest copy 9% above RAP. Sellers are holding out for more than the item has recently traded at, which is normal for a UGC Limited with few copies on the market.
How rare is SpongeBob Baby Plankton Keychain?
SpongeBob Baby Plankton Keychain is a UGC Limited Waist Accessory with 10,000 total copies. It is sold out at the original price, so copies now trade only on the resale market. It originally sold for free.
SpongeBob Baby Plankton Keychain has 476 favorites on the Roblox catalog.
SpongeBob Baby Plankton Keychain sales history
RBX Invest has recorded 313 sales of SpongeBob Baby Plankton Keychain across 213 trading days, from Sep 1, 2025 to Nov 4, 2026.
Free claims from the creator are not counted, so these are sales between players.
Its highest daily average sale price was 500 Robux on Aug 28, 2026, and its lowest was 65 Robux on Sep 2, 2025.
By calendar year, its average sale price went from 109 Robux in 2025 to 161 Robux in 2026, up 48%.
| Month | Average sale price | Sales |
|---|---|---|
| Nov 2026 | 157 R$ | 4 |
| Oct 2026 | 170 R$ | 20 |
| Sep 2026 | 257 R$ | 14 |
| Aug 2026 | 301 R$ | 16 |
| Jul 2026 | 152 R$ | 30 |
| Jun 2026 | 114 R$ | 24 |
| May 2026 | 65 R$ | 23 |
| Apr 2026 | 167 R$ | 12 |
| Mar 2026 | 124 R$ | 16 |
| Feb 2026 | 148 R$ | 14 |
| Jan 2026 | 188 R$ | 24 |
| Dec 2025 | 114 R$ | 20 |
Did SpongeBob Baby Plankton Keychain make money for release buyers?
SpongeBob Baby Plankton Keychain sold out of its original stock on its first day of sales, Aug 2, 2025. Copies could be resold from Sep 1, 2025, once Roblox's 30-day resale lock ended.
About SpongeBob Baby Plankton Keychain
He's just a baby!
How to get SpongeBob Baby Plankton Keychain
SpongeBob Baby Plankton Keychain is no longer sold by the creator, so the way to get it is to buy a copy from a reseller on Roblox. The cheapest is listed at 190 Robux.
SpongeBob Baby Plankton Keychain is Roblox asset ID 108486455041245. It was published by Square Sponge. On RBX Invest it sits in the UGC Limited Waist Accessories, Limiteds under 500 R$, Limiteds under 1,000 R$, Limiteds under 10,000 R$ collections. The RAP, reseller listings, and copy counts on this page refresh from Roblox continuously, so the figures above are the state of the market at the last update rather than a fixed snapshot.
Lowest asking prices for SpongeBob Baby Plankton Keychain
As of November 7, 2026, the cheapest copy of SpongeBob Baby Plankton Keychain listed for resale asks 190 R$. The table lists the 10 lowest asking prices with each copy's serial number and seller.
| Serial | Position | Asking price | Seller |
|---|---|---|---|
| #4,466 | #1 | 190 R$ | rafale24 |
| #3,109 | #2 | 249 R$ | p4wsrain |
| #8,300 | #3 | 300 R$ | DAWNBLOOX |
| #235 | #4 | 450 R$ | zabu1112 |
| #649 | #5 | 477 R$ | musicalify |
| #1,944 | #6 | 499 R$ | miuumi22 |
| #8,856 | #7 | 499 R$ | Beimarflo |
| #2,794 | #8 | 599 R$ | antoine1012zzz |
| #625 | #9 | 699 R$ | gabrijajaa |
| #1,576 | #10 | 699 R$ | gabrijajaa |