"Like, the best item ever. I mean, you're probably not actually upside-down, it's just the result of chewing enchanted leather." -AviWARNING: VERY TRIPPY, BUT RADICAL!!1!!!!1!11! Description: Clicking left-mouse button will make you flip upside down, but gravity stays the same for everything else. If you're already flipped upside-down, click the left-mouse button again to go right-side up. It's only obtained through dropping a bottleC and leather on a crafting station.
What this item looks like in-game.