Effect 1: The magician shows a coin of half dollar and other of english penny in the left hand, he closes both hands and when he opens his hands, he finds a coin of half dollar because the coin of english penny has travelled other hand.
Effect 2: The magician shows a coin of half dollar and other of english penny, places them in the hand of the spectator, asks him to take the hands to the back and pass a coin without he looks. Then he asks him to open the hand where the coin of half dollar is and certainly, there is a coin of half dollar. But the magician opens his hand and he´ll find a coin of quarter dollar. The coin of english penny has been eliminated.
Effect 3: The magician shows two coins, one of haf dollar and other of english penny, places them on the pad or a tablecloth, covers them with the hand in a second and uncovers them, he only finds a coin and the other coin crossed the pad. When he lifts the pad, the english penny will be there.