The 1.30 update is here: Party Dungeons! Achievements! Arcade! Lava has requested a few things remain hidden for a week or two so everyone can get first time experience. NOTE: The Web version is not yet updated. There are a few lingering issues Lava needs to fix before that happens.
The result of letting heat and sand get it on if you know what I'm sayin. NOTE: This is a very rare drop from Sandy Pots