Whatnots

From Muppet Wiki

Whatnots are blank Muppet heads, onto which facial features, bodies, and clothes are added to make any kind of character in the Muppet Show universe. A similar group of Muppets known as Anything Muppets appear on Sesame Street.

Notable recurring characters made from Whatnots include Lew Zealand, Marvin Suggs, and Bobby Benson.

There were many different Whatnots. In the first two seasons, the Whatnots were mostly shaped like Fraggles. Later in the series, more humanoid Whatnots were added, often with sculpted noses.

In 1993, Playskool released a series of toy Muppet Workshop Puppet Kits based on the concept of Whatnot Muppets.