I purchased this online this summer after San Diego Comic Con. The idea is brilliant. This Star Wars Space Slug Jack in the Box comes from the ReedPop Supply Company - Purveyors of the Finest Pop Culture Collectibles or something like that according to their website.
ReedPop Supply Co
Brought to you from that classic scene in Empire Strikes Back, just turn the handle, listen to the music, and wait for the giant slug to chase you out of the asteroid.
Though a convention exclusive, you can still buy this today for $25, including some other funny Star Wars collectibles.
Space Slug Jack in the Box
I may also have to pick up the Death Star Soccer Ball.