Bouncy ball
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A bouncy ball is a popular toy which rebound proportionally to the amount of force used when thrown at a hard surface. A typical bouncy ball can keep up to 90% of its kinetic energy for one rebound.
In the United States, they are often sold from bulk vending machines for 25 cents. These vending machines can be found in a variety of venues from grocery stores, department and strip shops, malls to nearly any place that will attract a large amount of people with intentions spending money. Since bouncy balls are often sold alongside candy, there have been instances of customers mistaking them for gumballs and almost choking on them. This has been recognized and addressed by the increase in size of some bouncy balls (some double the size of the originals), yet retaining the same price. It should be noted however, that price may vary from machine to machine, ranging anywhere from a quarter to as high as a dollar. They vary from different colors and designs.
Generic bouncy balls should not be confused with the Super Ball, a Wham-O trademark.