Magic  Wonder Ball
Spheric plastic resembling an oversized, black and white 8-ball. TThere is a transparent window on the bottom of the 8-ball, and when the ball is held so that the window faces up, the die floats to the top randomly exposing one of its faces in the window. 

To use the ball, the user must hold it with the window down. In the window, one face of the die will be visible, revealing the response to the user's question. Contrary to popular belief, it is not necessary to shake or jostle the ball before turning it, which can consequently create air bubbles that often visually distort the answer.