Ladies! Hate waiting for your manicure to dry? Wish you had some kind of nail polish protector? You're in luck! These Nightmare On Elm Street-esque nail polish guards (as seen in a 1940 issue of Popular Science) prevent accidental smearing. "Made of springy metal, the guards are slipped on over the ends of the fingers... and are held in place by elastic bands." Click the picture to see a larger image — and check out how much the model is enjoying these contraptions! [Modern Mechanix]