Effect: Borrow a coin and magically make it disappear. Remove a small box from your pocket. When opened it reveals another box inside the first one. Open the second box. A third box is inside. Open the box and yes, still another is inside. But now for the amazing surprise. The last box contains the borrowed coin.

It is really the same coin that disappeared earlier (you can even have it marked for identification.) The secret is simple. A hidden gimmick in your pocket makes it all happen. All the instructions are included along with the boxes and gimmick. (use anyone's real coin.)