A Change of Face
From Muppet Wiki
A Change of Face was performed on The Muppets on Puppets and The Ed Sullivan Show.
A doctor, played by Rex Robbins, prescribes a change for the Southern Colonel. The puppet changes his face from a old man to a boy, a young teenager, a poet, a mobster, a drunk, and then an alien. Robbins is freaked out by this and tries to change him back, but gets his features upside down.
