I'm not a Dilbert fan at all, but I thought this was a neat idea. Each day this week, a guest cartoonist is drawing the Dilbert comic for the day. The first three have been posted so far, three more to go: http://www.dilbert.com/comics/dilbert/mystery_artist.html My favorite was the April Fools day cartoons a few years back when cartoonists switched comic strips for the day. I still have those on disk somewhere.
I liked Darby Conley's Tuesday strip, where instead of trying to draw an actual Dilbert strip, he incorporated the characters from his Get Fuzzy, playing the parts of Adam's characters. Still trying to figure out, though, if the "director" in the middle pannel is supposed to be "The Real Dilbert" or perhaps Adams himself.