Scotch And Soda Coin Trick (watch video).
Requires no skill and can be learned in 5 minutes.
The first coin trick by everyone that ever was interested in magic.
If you want to have fun, make friend and money this is the trick for you.
The coins do all the work.
Put the half dollar and the copper Mexican Centavo in your spectators hand.
Have them close their hand and then it is reopened, immediately the copper Mexican coin is gone and in it's place is a quarter.
Scotch And Soda Coin Trick (watch video)