Trick Effect & Routine:
Magi takes coin with his hand. he opens it and it has disappeared.

Preparation:
have one large coin ready.

Method:
hold the coin in your left hand and pretend to take it with your RH. in reality it is dropped in your left hand and retained in the finger palm position. open your RH to show that the coin has disappeared (do it finger with flair!)

Comments:
good but simple trick. done properly it will blow their minds