This one has to be seen to be believed!

 

And it's SO EASY! Simplay push a pen through the holes in the Miracle Zone case. The pen is seen sticking out of both ends of the case. The door on the center of the case is opened- the center of the pen is now invisible! Even though the pen can be moved back and forth, and you can see both ends moving! You can even see your hand through the door in the middle of the case, but not the pen! 

 

No mirrors, no sleight of hand. Incredible!