I ran across Ironic Sans the other day and was immediately impressed. The link I followed was for a wall of outlets, which was impressive enough, but the rest of the site also seems to be a real fund of intriguing and amusing ideas from the fertile brain of David Friedman, a photographer in his offline life.
Histographic steganography, monoblock Tetris, and the “bulbdial clock” can all be found on this blog; if you are interested in the intersection of technology, design, and pop culture you’ll probably find this a good read.