Just in case you weren't satisfied with the wide array of color contacts out there, either because you don't feel like they look natural or because of those silly instructions telling you to take them out once in a while, you'll be glad to know that you might have an option. A Toronto man nicknamed Pauly Unstoppable (of course) got an eyeball tattoo. Say it with me: EEEEWWWWW!!!!
Over 40 injections were made into the man's eyeball in order to turn it blue. Not just the iris -- the whole thing. The procedure was entirely experimental (and GROSS), and Mr. Unstoppable made a point to say that this was something and his tattoo artist had researched, and that nobody should try this until he finds out whether it will make him go blind or not.
Fantastic. Hope those blue (eye)balls are worth it, man.