此道具可作「咬币」(Bite Out Coin) 和 「折币」(Folding Coin) 的用途.

硬币穿瓶:
给观众看一个空的酒瓶或汽水瓶，在检查完之后，让观众拿住瓶颈。然后你拿一个币，从瓶子的部把这枚硬币送到瓶子里。观众会摇一摇瓶子以证明硬币确实从瓶底进如了瓶子里。
当观众看到硬币躺在瓶子里时，你让他把手放在瓶子底部。硬币会再次从瓶子的底部掉到观众的手里。这是一个绝对的即兴表演可以在任何聚会和酒吧表演。可以使用任何瓶子。我们的魔术可以把这个魔术提升为一个奇迹。

咬币: 魔术师将硬币放进口中, 一咬, 硬币居然被咬去一截! 魔术师轻轻一吹, 硬币回复原状.

视频演示：

https://cloud.video.taobao.com//play/u/1078603494/p/1/e/6/t/1/337353293823.mp4

Folding Coin (Morgan Dollar, Brass)

The magician takes a normal coin and an empty bottle. He requests a spectator who takes the bottle for the peak and strikes the bottom of the bottle with the coin, and it crosses the bottom of the bottle. Afterwards he shows that the coin is really inside the bottle, the magician waves the bottle and the coin goes out of it. Immediately he gives to examine the coin and the bottle.

Demo: https://youtu.be/2dFxP8WQCB4