Chip and Dip
From Muppet Wiki
Chip and Dip are a pair of identical cats who appeared on Sesame Street in the mid 1980s. The pair spoke in raspy voices and enjoyed playing tricks on Oscar the Grouch. They also played the drums and piano in Hoots the Owl's band.
One of the puppets most recently appeared in a CSI spoof. During the same season, the duo appeared in Episode 4143 with different colored eyelids.
After Richard Hunt's passing in 1992, David Rudman has been amongst Dip's performers.
