In the november 2, 1992 draft of the Mutanimals animation bible it says Cudley the Cowlick was considered as a vehicle, carry case and playset. That's a lot of play value! You open his mouth and put your Mutanimal action figures inside and roll him around.
A side note proposes that he be accessorized with a can of clear slime so that you can slime your action figures with fake saliva.
Also included in the pitch is the Sea Ray, the Mutanimals' underwater battle sub and a Mutanicycle with attachable side-car.