Impossible Card Escape (2004)

You show three cards, an ace and 2 indifferent cards. You put the ace
between the two other cards and give them to a spectator who can firmly
grip the cards between his thumb and index finger. You drape a silk over
his hand and the cards and tell you will try to make the card jump to
the top or bottom of the card packet. You snap your fingers and remove
the silk. The spectator can now see for himself where the card has gone
to…when he starts looking the ace seems to have vanished. You them
show your empty hand and slowly remove the ace from your pocket!

All the cards can be examined. Very easy to do, includes cards and instructions, use your own silk.