The magician shows four different colored poker chips and places them on the table. Two of the chips are covered by two cards. The magician pretends to invisibly remove one chip from under one card and place it under the other card. When the cards are lifted up, both the chips are found under one card, whereas there is nothing under the other card.
Again one of the chips is covered by a card, and the pile of two chips is covered with the other card. The single chip under the card magically vanishes and reappears with the other two. Finally, the last chip and the pile of three chips are covered with the two cards. When the cards are lifted, all four chips are found to have magically assembled together under one card.