The book 10 PRINT CHR$(205.5+RND(1)); : GOTO 10 (and the program) have been discussed as “cool” on Fark. (I was hoping for a Photoshop contest with the program’s output, but this is nice, too…)
One of my co-authors, Casey Reas, has issued a 10 PRINT design challenge to the Processing community. There’s already been one program written in reply.