Six Glass Production

Performer displays 2 flat boards which are clearly displayed all round. He holds one board horizontally like a tray, and places the other board vertically on it., like a screen. 

When the vertical board or screen is lifted away, a 3-D decorated glass tumbler is seen resting on the horizontal board (tray).  

This is repeated again and again till six glass tumblers in 3 different colors have been produced on the "tray". 

Comes complete with all necessary apparatus and illustrated instructions. Mechanical item, only requires handling practice.