Regarded by many as Mickey Mouse's alter ego, Rat Fink was first penned by Roth in 1961 and the initials "RF" are often silk-screened on T-shirts. Roth Studios later created a large number of other playfully monstrous characters including Mother's Worry, Mr. Gasser, Chicken Shift, Drag Nut, and many more. (Collection of the Petersen Automotive Museum)