The Greatest Penetration Trick Ever Invented!
A ring (which may be borrowed) is placed into a crystal casket and the top is closed.
The box is covered with an empty tube.
A magical cleaver (a small sword) is inserted into the top of the tube, and then magically pushed down through the crystal casket and through the ring.
When the tube is removed the sword is through the ring inside the casket!!
Once you learn the secret, you can perform Crystal Cleaver in one minute.
A new principle (which has never been used in a magic trick before) makes this effect a total mind blower. And get this: after the trick everything (that's right, everything) can be examined!!