Minecraft on the PS3 supports certain skin and texture mods that change the game's appearance only. They must be purchased as DLC from the PlayStation Store at Playstation.com and installed on your console. Third-party modifications available for computers are not available for the PlayStation 3 edition.
Skin packs change the appearance of player and non-player characters while texture packs change the look of the environment. Mash-up packs contain a combination of skin and texture packs, as well as new environmental effects and music. The first pack was made available at the game's launch and new packs have been steadily released since.