Vanishing Martini by Uday

A drink is poured out of the Martini bottle and then it is placed on the table. Half the height of the bottle is covered with a paper cylinder and then a large handkerchief is placed on top of the set up. Magician says that he can either cause the bottle to vanish visibly or invisibly. Obvious choice will be to vanish the bottle visibly. Place the handkerchief aside, slowly squeeze down the paper cylinder and when it aligns with the bottom of the bottle, take the paper cylinder and show right through and the bottle is visibly vanished into thin air.