The magician sets a small ball onto a transparent base and walks completely away from the table.  There are no strings attached.  A spectator is invited to set a large glass over the ball and base to insure that there is no trickery or any attachements to the ball.  As the magician sets his thoughts on the ball, it takes on a life of its own, falling off the base and rolling onto the table!Immediately the glass is removed and everything may be immediately examined!  Very easy to do