In the 'too much time on your hands' department:

fuz.dk. >>  How many people do you know that would actually spend 30 hours "pixelizing" their apartment?  5 rooms, true-to-scale, done "one pixel at a time."  It's nothing short of astounding...  [Coolstop Daily Pick 10/1/02] [jenett.radio]

While I don't think I'd have the patience to do this it certainly is impressive.