Tom Sito's storyboards for the season two He-Man episode "The Greatest Show on Eternia" are fantastic. Each and every page is filled with wonderful visual treats and gags. Here are two amusing panels in which Orko watches a workman put up a poster with a long glue brush. Tom calls the workman a "futuristic workman" in the first panel, but jokingly illustrates a normal everyday Earth-based workman; even going so far as to have the character smoking!
(click on the image to see it at full-size)