What would you think of "OC Bases & Muppets"?
The OC doesn't have to be a muppet base. Just an OC base with a muppet.
For example:
Kermit the Frog
Fozzie Bear
Gonzo the Great
Miss Piggy
Clifford
Sam the Eagle
Animal
Floyd Pepper
Rizzo the Rat
Pepe the Prawn
Walter