Not mine, found here: http://www.amusingplanet.com/2009/04/photo-realistic-pencil-sketches-of.html?showComment=1246804596556

Discussion of whether these are art or not in the comments is interesting.

Most people can see this is a skill. Some people think it is not art. Does it matter? I think they are funny. People always want to draw things to look realistic. To look like a photo. What does reality look like?