What it does: Designed to make a perfect Brigitte Bardot-like bump, this handy plastic doodad falls into the why-didn’t-we-think-of-that category. Simply part your hair at the crown, tease it a little, then stick a Bumpit—a crescent moon-shaped plastic comb—behind the part. Make another part about inch behind the first BumpIt and stick in another slightly larger one. Presto—instant sex-kitten volume.

Screw-up factor: If you don’t brush enough of your hair over the combs and spritz it in place with hairspray, you could wind up with little plastic “teeth” poking out on top. Not cute.

Works best on: Shoulder-length or longer hair. The thicker the better.

Final verdict: A BumpIt ‘do can look surprisingly chic, and it sure beats the time-consuming, snarl-creating teasing that you’d have to do to create the megalift this little tool gives you. But if someone—say, that special someone—runs his hands over your hard, comb-topped head, he’ll probably freak.