You get a small jigsaw puzzle of the Mona Lisa with a missing piece and a bunch of different pieces
where one will fit the missing piece. The magician demonstrates all the pieces are different. The
volunteer picks one, and it is the missing piece. The picture is around 8-10 inches.
This
is very deceptive, and a blind 5 y/o could do it with a minute of coaching.
I mounted mine
on masonite to protect it and attached a black cloth to hide the picture before the reveal so I can
force the Mona Lisa too.