Where It Came From: Rotterdam, The Netherlands
...BUT WHY? Because people want to go platinum in a different way.
First developed at the Netherlands Institute for Innovative Ocular Surgery (NIOS) in 2002 as a new form of body modification, extraocular implants—rather, "eye jewelry"—involves a piece of platinum alloy molded into a variety of shapes like hearts, Euro signs, or stars, inserted underneath the cornea by a licensed opthalmologist. The process runs just shy of $1,000, and currently you'll have to fly to The Netherlands to get it done safely, as it's the only place it's completely legal.