Note: these are Hershey's-Kiss-inspired CD/DVD stands—not actual Hershey's Kisses—that are being used to prop up optical media. The latter might work, but the former will crack that coworker's tooth who keeps stealing your desk candy. [HiddenArtShop via NerdApproved]
I like this idea a lot. I'd certainly pick up a few.
This won't work as a candy prank, unless your coworkers eat candy with the foil wrapper intact. Best food revenge is for those who have the gall to take other people's lunch from the fridge. Insanity Sauce is a good way to go about it. Anything that says shake well, and good luck on the bottle's gotta be good.