How about your DNA?
A company called DNA 11 offers you the opportunity to turn your genes into works of art. They're actually quite attractive, too. Kind of modern-styling with a nerd edge:
Of course, it'll cost you at least $169 a piece, but hey - that's the price of a quality artwork! I guarantee you when I stop being a broke scientist*, I'm going to get me one of these for my house that I'll be able to afford*. They're just too cool
*wishful thinking, I know