Prediction Book

The magician places three items on the table. A key, a watch and a Pen.
The helper is asked to remove one of the items.
After the item is taken away, the magician points out a book that has been in plain view the entire time.
The first page of the book shows the same three items and the magician begins to flip thru the book. A hand that is drawn on the pages starts to reach in from the side of the page and removes the same item that the helper had removed.

Easy to do and repeatable with the other items!