I was playing with LibraryThing today and noticed that they have a link to the blog of this guy who used the book covers from his LibraryThing account to make photomosaics of himself.
I had to try for myself. It was really easy, though you do have to download this program called AndreaMosaic.
I had to shrink the images so much to get them on the web that you can't actually tell that the tiles are book covers. But they are, trust me. :) Here's me last fall in Prospect Park in Brooklyn:
And me at the beach in Corolla last year: