"In the late 1960s, Wham-O made a giant Super Ball roughly the size of a bowling ball as a promotional stunt. It fell from the 23rd story window (some reports say the roof) of an Australian hotel and destroyed a parked convertible car on the second bounce."

https://en.wikipedia.org/wiki/Super_Ball

Super Ball - Wikipedia

@vadhakara "Lamar Hunt, founder of the American Football League (AFL) and owner of the Kansas City Chiefs, watched his children play with a Super Ball and then coined the term Super Bowl." Whoa