As the title says, has anyone heard of, or had experience with glow in the dark ink? Or even just ink that glows only under a black light? I was wondering because while my friend was getting her belly button pierced, the guy had a (so she says) really cool tribal sun thing. She said it was nice and then he grabbed a black light and shone it on the tattoo and it lit up bright white. I was thinking that it would be a cool tattoo ink to use. It'd be different.