Guajolote Prints Clean Dirty Dishwasher Magnet Sign Indicator - Funny Naughty and Nice Christmas Gag Gift Idea Guajolote Prints Dishwasher Magnet. Style: Naughty or Nice Christmas Lights Measures 2.5 x 2.5 inches (square). Protected with scratch and UV-resistant Mylar. Durable and sturdy metal shell with strong magnetic backing.