Norman Stingley conducted experiments with highly resilient synthetic rubber. He accidentally produced an astonishing new toy. When compressed under extreme pressure, the substance would bounce like crazy. The compound was called Zectron, but the ball became known as the Superball. More than 6 million of these bouncing balls had been sold by 1965. At the height of their popularity, the balls even infiltrated the White House; Cabinet member McGeorge Bundy passed them out to staff members.