Produce a REAL, FULL bottle of wine/champagne/cider/whatever from silks shown clearly empty.
You hold three 24″ silks by their corners with one hand, yellow, blue and red. With your free hand you throw the yellow silk into the air and it gently cascades down to be held again. The blue silk is thrown into the air and gentle cascades down and then the red silk is thrown. Each of the three silks was shown empty and normal but, pushing the silks together into a ball, you produce a REAL, FULL bottle of wine that can be freely given to the audience.
VERY simple to perform.