Some folks, for reasons I'm not quite sure about, find it intriguing to give us x-ray vision with their tattoos, showing us what's inside them--literally instead of figuratively (like I did above). Let's see how much we can take, shall we?
Perhaps in their own artistic ways, they are the ultimate exhibitionists.
And then there's 3D tattoos that add a bit more depth to the art.
I guess the guy above's dad can call him "Black Hole Son"