The magician shows the audience a small plate, and puts a 2 euro coin on  it. He then introduces a solid transparent glass and places it mouth  downwards over the coin on the plate. Now with a 5 cents coin he starts  to tap the bottom of the glass and suddenly, the audience will see the  coin "penetrate" the bottom of the glass and drop near the 2 euro coin  on the plate.
 
A wonderful effect!
 
• So easy and visual!
• The cup is not supplied.