The magician shows the public a saucer on which he places a 2 euro coin. Then he takes out a clear glass which he turns upside down on the saucer. At this point, with a 5 cent coin, start hitting the bottom of the glass and suddenly the audience will see the coin "go through" the glass and fall next to the 2 euro coin.
At the end of the effect you can give everything to check.
Easy to do but with a great, great impact on the public. The glass, as it is normal and without make-up, is not included in the package.