Magic Crystal Coin Case

Make a real coin vanish right before their eyes! Place any borrowed ordinary coin into the frame.
Then place the solid plastic windows on either side of the coin.
Then, just to make sure it’s secure, wrap the whole thing with a couple of rubber bands.
Place any silk or scarf over the frame for just an instant- and the coin is GONE!
The frame is still wrapped up tight, but the coin has vanished! Also known as coin window.