Here is a fun trinket for your desk: a Zelda treasure chest that features a Rupee floating in mid-air. This is made possible by magnetic levitation, something you’ve probably seen before (like that floating Tardis).
It works the exact same way as all other mag-lev toys, however the magnetic base is integrated into the treasure chest:
Other items could be swapped in, like a heart container, potion, compass — anything really. This sucker runs on AC or battery power, so I don’t see why it couldn’t belt out a few chimes from the game as well, or emit lights from the bottom of the chest (like in Ocarina of Time).
One downside is the treasure chest wouldn’t be able to close, because it needs to be a single solid shape molded around the mag-lev base.