Inside is another case. That one is opened and inside there is yet another case. Finally when you get to the fifth case something can be heard inside. Includes instructions for vanishing the coin. This trick is especially good for learning magicians as well as seasoned vets.
Magician shows a pocket knife to be the same color on both sides.
Then, in an instant the knife visibly changes color. In a different routine magician shows a different color knife in each hand. Instantly the knives change places. Your audience will have their heads spinning. This one is clean and easy to do.