Imagine you're coasting off Mexico somewhere and an unlit vessel begins to stalk you . . . flip a switch and your boat becomes a Great White. Flip another and it's a USCG rib. Flip another and it's the bandido's mother wagging her finger at him . . .
Or this . . . you apply this stuff to your dinghy outboard's cover. when el bandido touches it, he completes the circuit and it becomes a crocodile head -- like that motorcycle . . .