APE-ril: Cymbal Monkey

Who invented the Cymbal Monkey? and why?   More importantly why is it so damn creepy?  he was even creepy in Toy Story 3!  Why would you make such a creepy creepy thing?   It's sooo creepy!  But anytime I think of a Cymbal Monkey... I think of this scene from EuroTrip.

NOTE:  The scene from EuroTrip contains adult content and nudity, parental discretion is advised.