Wow, the possibility of lighting that's part of a project getting ripped off honestly hadn't occurred to me... Lighting is an integral part of my piece as I'm envisioning it.
Maybe I can incorporate a performance in which I huddle behind my sculpture, camouflaged, waiting for some foolish raver to touch my lighting installation, then, while the culprit is distracted by the pretty lights, I strike! Like an effing banshee I spring forth, tackle and zip tie the asshole's wrists together, then escort him or her to the rangers to be ejected.
Or maybe a note or placard with my address so we can negotiate a barter if they want my light so badly, though they had better have something really awesome to trade.