A razor blade? Hidden in a comb?

No, it's not an urban legend or something being handed out to trick-or-treaters at my house. It's the Hair Wiz, a half-crazy, half-genius, 100 percent effing terrifying invention depicted in this here old-timey advertisement. The Hair Wiz is kind of the psychotic grandfather of the Bumpit. It's a comb that looks like birth control pills and, oh right, it's full of razors. Quick! Put it near somebody's head!

Enjoy!
(Thanks, OhHaveYouSeenThis.)