Effect: The performer displays three dominoes, two of which show double five spots and one a double one spot. The dominoes are turned face down, mixed, and the spectator asked to point to the double one domino, as in the popular Three Card Monte game. They fail to do this, in spite of several efforts.
Then one double five domino is eliminated, to make this easier for them, but they still fail to find the one spot.
Finally, the second double five domino is placed in the pocket, and the spectator is asked to place their finger on the face down one spot. But when they turn the domino over, it is the double five spot! And all the dominoes can be handed over for examination.