The magician displays a picture frame containing a photo of Harry Houdini. The magician explains that, not only was Houdini known for his illusions and escapes, but also for the power of his gaze. He could shatter glass by simply looking at it.
The magician (not being Houdini himself), uses a more practical way to shatter the glass. He places the frame in an empty plastic bag, then twists it until the noise of broken glass is heard. He waves his hands over the bag, removes the frame, and shows that the glass has restored itself!
Amidst the laughter of the astonished audience, the magician announces, "Behold! This is something Harry was NEVER able to do!"