These Cartoon Network character designs were also done about 3 1/2 years ago. The script called for some "disgruntled animators" who were working at an animation studio in this particular episode. The assignment was fun, however these designs were never used and did not appear in the show. By the way, the red pencil markings on the drawings are simply "registration marks" which indicate where the background would have been in relation to the characters. Enjoy!