Neither of these tricks is original, but as far as I know they have not appeared before in print. I believe they are worth passing on.

To perform the first trick, balance a penny on the tip of your right forefinger. The finger is slapped vigorously several times on the open palm of the left hand, but the penny remains balanced on the forefinger. Others are unable to duplicate the feat.

Follow the drawings carefully. As the right hand approaches the left it turns over and the right thumb is placed on top of the penny. The forefinger and thumb, holding the penny securely, bend back out of sight and the middle finger is extended. As the right hand returns, the moves are reversed. Watch your angles of vision, and with a little practice the move can be performed in an undetectable manner.

The second effect is quite different. A penny lies on the open palm of the right hand. When tossed into the air it spins rapidly as though it had been flipped by the thumb and finger in the usual manner. When others try the trick they find it impossible to impart a spin to the penny.

The secret is very simple. Just as the toss is made the thumb moves over the palm so that the tip of thumb just touches the edges of the coin as it goes by. The tossing motion of the hand conceals the movement of thumb, and even you yourself cannot see the action.