Chewie the Cookie

Chewie is a titular culprit Cookie who steals art from the walls in the Sesame Street special, The Cookie Theif.

During his criminal mission to steal priceless frames of cookie art, he leaves Cookie crumbs including the chocolate chips to help Elmo and his team figure out who the theif is and who did that. They eventually corner him in his liar (within the walls of the museum), where the cookie art is all kept.

He claims he loves cookie art so much, he just can't control himself. The gang teaches him that art is for everyone to enjoy and he can focus his energy better by making his own art. Following an accident with art supplier Grover, he creates his own piece of cookie art - a colorful, splatter impression of himself, which he titles, The Cookie. The piece finds its way into the museum afterward.