I just ran across this recently and found it hilarious; thought some people here would like to see it:
(I’ve disabled the link because it’s probably not safe for work)
http://www.guba.com/watch/2000904493
(It’s 60 some megabytes, by the way).
The rumor is that it was done by a well known animator; Max Fleischer is one name that’s been tossed around as rumor. Anyone know anything more?