Booze Implants Hidden Flask from Kheper Games. Hide your booze in your bra. You thirsty? Hold 4 ounces each. Hide your booze where everyone will look, but will not dare to touch. Unless invited. Each fun flask holds 4 ounces and they fit snugly inside of a woman’s bra. For best use, place the caps towards each other, so they appear to be part of the bra’s center. Great for hiding your booze at events! Color Beige, Pink.