Splash Bottle - Damien Vappereau
At anytime in his performance, the magician blows up a balloon, which he freely shows to the audience from all sides. He then removes a knife, and pops the balloon, when a full bottle of champagne appears!
This utility holdout device can be used to produce a large variety of bottles, ranging from large champagne bottles to smaller beer or soda bottles. Use it on stage and close-up."