Superballs were invented in 1964 by chemist Norman Stingley, made of synthetic rubber, they are extremely elastic and, therefore are able to bounce very high. The original Superballs had a tendency to fall apart. After a little tinkering, that problem was fixed and a fad was born.
In the late 60s, a giant Superball the size of a bowling ball was produced as a promotional stunt. After falling from either a 23rd floor window or the roof of an Australian hotel, the Superball destroyed a parked convertible on its second bounce.