yess! I am such a geek! Using the wonderful "Garry's Mod" mod for Half Life 2 I made a Rube Goldberg device (like that Honda advert) Took 2 days to make! And the music is: The Spanish Flea by Herb Alpbert and the Tijuana Brass.
As the manufacturer describes it "Heliodisplay images are not holographic although they are free-space, employing a rear projection system in which images are captured onto a nearly invisible plane of transformed air."