Felix the Cat is the one of the few cartoon characters from the 20s who doesn't make me heave (Popeye is the other).  Interestingly enough, both Pat Sullivan and Otto Messemer claim credit for his creation, although Otto is given credit most often.  However, he is also the inspiration for the super creepy cat wall clock with the tail pendulum and the eyes that go back and forth.  They always gave me the heebie jeebies.  Here is one if you don't know what I am talking about http://www.asseenontvguys.com/index.asp?PageAction=VIEWPROD&ProdID=146

Anyway, you get retro hipster points for wearing this one.