The funniest prank in years is about ready to hit you upside yo' head: Crime Scene Semen Detection Kit!

It's an official-looking evidence gathering kit, just like you've seen on TV crime scene investigator shows like CSI. Best of all, it always produces a positive reading for semen. Imagine busting your bud at a party for having semen on his hands, shirts, face, even when it isn't really there!

Kit includes case, evidence collection card, three false-positive collection swabs, three negative collection swabs, isolation vials, and activator.

Grab your kit today for only $8.99 + S/H! Buy more than one for a discount.