It has long been rumored that you can briefly see Bugs Bunny's penis in the short "Wabbit who Came to Dinner." Some people even go so far to say the animators admitted to the dirty trick.

Unfortunately, close inspection of the video reveals that what appears to be Bugs's penis is actually just the white bathtub behind him. It look's like a protruding phallus because the shape where his legs meet his hips is a narrow arc. Look close, and you'll see. Unless you really really want to see an animated rabbit's penis, that is. In which case, you'll probably end up seeing them everywhere.