Folding Coin (U.S. Half Dollar) by Royal Magic

A spectator is handed a regular bottle to examine. Next, a coin is borrowed and magically made to penetrate through the bottom of the solid bottle! The bottle is then turned upside down to show that the coin does not fit through its neck. But when the magician shakes the bottle, the coin falls out of it! The coin is then returned to the spectator, and everything can be examined!