Thanks to Mara for giving me a heads up about eye jewelry. This is jewelry attached to a contact lens that you wear dangling from your eye. It's real in the sense that artist Eric Klarenbeek really has designed examples of this concept. However, it isn't real in the sense that anyone actually goes around wearing this stuff (at least, I don't think they do). What I can't figure out is how people could blink with a piece of metal sticking out of their eye. Note that eye jewelry is different from eyeball jewelry (the latter is inserted into the eye itself).