Head on a platter : the exhibit

Stand in front of the exhibit and ask your friend to go inside the enclosure through the gate and lift his head up through the hole in the baseboard holding the fruit bowl. You will find your friend head among the fruits with his body vanished. The table with the fruit bowl at the top has mirror surfaces on two front sides. Images of the base and panels formed on the mirrors create an illusion of a hollow table and the body of your friend appears to vanish though actually it is hidden behind the mirrors.