メモリ金属ワイヤ火災予測 (大) 7 ハート - Wiregram

Imagine dipping a piece of ordinary wire into hot liquid, and it instantly changes into the shape of a previously selected card! Wiregrams are available in a wide assortment of cards.

The trick works over and over with the same wire each time. As an alternative to dipping the wire into hot liquid, some performers prefer to run the wire through the flame of a cigarette lighter.