Snerf was a monster created during Jim Henson's early years on television variety shows. It is essentially a little fuzzy tube with eyes and hair, who pops up and down. When created the first licensed Muppet dolls, the three characters they chose were Kermit, Rowlf and Snerf. However, there's no evidence that the Snerf puppet was actually manufactured and sold. After a while, multiple copies of the monster appeared at the same time, and they became "the Snerfs". They appeared in an early episode of Sesame Street, helping Kermit demonstrate "tall" and "short."