I was rumaging through junk in the basement last weekend and found a small counterfeit money checker (you know like you see at convenience stores, etc?). It's basically a small florescent black light. The entire unit is no bigger than 8-10 inches long (that's what she said).
Any ideas? My cabinet is white, black and blue/purple scheme. Might be fitting to have black-lit art in there...
Although, I held it up inside my MAME cabinet, above the screen, and it looks like the UV light illuminates the phosphors on the monitor.