The Babies as the cast of Crock.
Crock is an American comic strip created in 1975 by Brant Parker, Don Wilder, and Bill Rechin. The strip focuses on members of the French Foreign Legion, including Commandant Vermin P. Crock.
The strip was referenced in the Muppet Babies episode Comic Capers. The Babies are making up a story from cut out panels from the Sunday comics, wandering through Blondie, Hägar the Horrible, Alley Oop and Peanuts (among others).