[RKDinOKC]

Motion detection camera and a remote trigger dye pack...Or you could Fedex some dye packs to yourself packaged so they go off when the box is opened. And throw in one of the cheap sound boxes that just laugh, ha ha ha ha when the dye pack goes off. They open the box and Pow, splatter, "What?", ah ha ha ha ha ha ha ha.

You could put up a web site and sell the dye-pack boxes for people who get packages stolen to send to themselves.