In his latest series called "IT Everywhere" Paul The Wine Guy photoshopped pictures of graffiti as if they were done by geeks: Link [Flickr set]j - Thanks Jon Jason and Luciano!
Previously on Neatorama: Understanding Art for Geeks, also by Paul The Wine Guy
I wish some of those actually had been in real life, particularly the ones displayed above. It's nice when people jazz up graffiti.
http://www.flickr.com/photos/paulthewineguy/sets/72157603830429382/