You guys probably know the term "hand-bra," referring to what a lady does to preserve her modesty when topless. But this takes it rather literally, doesn't it? Another version, this one for sale:

The best thing about these, of course, is how comfortable they are. Kidding.

[$7, Costume Shopper]

[Via Inventor Spot]

Related: Guess the Product: Super-Bra?, I Judge This Bra To Be Guilty of Sexiness [NSFWish], Could You Hold These for a Minute?