The Cups and Balls is a very classic magic game.
The most widely performed version of this trick would be three cups and three small balls. The magician makes the balls pass through the solid bottoms of the cups, jump from one cup to another, disappear from a cup and appear in other places like in your pocket, or vanish from pockets and reappear under the cups.
Material: ABS or customize
http://www.dasengmagic.com/classic-magic-tricks/14009305.html
Magic Trick Cups And Balls