Rube Goldberg animated
. Professor Butts' "Self-Operating Napkin" is set in motion when soup spoon (A) is raised to mouth and pulls string (B), jerking ladle (C) which throws cracker (D) past parrot (E). When parrot jumps after cracker, perch (F) tilts, tossing seeds (G) into pail (H). Extra weight in pail pulls cord (I), which opens and turns on cigar lighter (J), setting off skyrocket (K) which causes sickle (L) to cut string (M), making pendulum with attached napkin swing back and forth, thereby wiping chin. Substitution of harmonica for napkin creates after-dinner entertainment.
Rube Goldberg draws more gadgets in this 1940 short film, Something for Nothing (8:47), which features two brief bits of animation. It was produced by the Jam Handy Organization for Chevrolet.