Doubling Money Magic Trick

Effects: You can double the amount of money put into a matchbox.

Trik: The point is to hide a coin in the top matches.Ask the audience to enter a coin to matchbox who thought empty. Close the matchbox, and say, "I'll double the money in this box!". Open box of matches, and in it will have two coins!
 
Tips:Perform this trick with a quick tempo, so that viewers do not get a chance to examine in detail the matchbox.