Changes the appearance of any pet in your inventory to a different model (e.g., changing a basic cat into a Huge Kawaii Cat) [1, 2].
Exploiting or using third-party scripts violates Roblox's Terms of Service and can lead to permanent account suspension [5].
These changes are typically "client-side," meaning only the player running the script sees the modified pets; they do not change the actual value or stats of the pet on the server [3, 4].