#2 Mantaur
In one of the craziest ideas WWE's booking department ever conceived, they created a character based upon the Greek Myth monster, The Minotaur.
According to legend, the Minotaur has the head and tail of a bull and body of a man. The tall tale became reality when Mantaur first appeared on WWE television in January 1995. Charging and mooing at opponents, Mantaur was a colossal disaster.
The character understandably was derided by fans and observers and lasted all of six months before it was unceremoniously scrapped and never mentioned again.
Mantaur. Better best forgotten.