"Hardheadipus oedipus" is my favorite. See the whole list here. Via Super Punch. Photo found here.
I'll give a no-prize to the first commenter to find the "Hardheadipus Oedipus" cartoon on YouTube.
*Update: Nice work Warlock. Email me at jstruan at gmail.com, and I'll send you your no-prize.
http://en.wikipedia.org/wiki/No-Prize
(Although I do something a bit different...)
http://www.youtube.com/watch?v=Dl3t8-Tv9f0