Wham-O Inc. is a toy company in California, USA. They are known for marketing many popular toys in the past 50 years, including the Hula Hoop, the Frisbee, Slip 'N Slide, Super Ball, Trac-Ball, Silly String, Hacky Sack and the Boogie Board.

A building inspector named Fred Morrison puttered with and refined a plastic flying disc that he sold to WHAM-O in 1955. Introduced to the consumer market in 1957 as the Pluto Platter (the name inspired by the country's obsession with Unidentified Flying Objects), it was modified in 1958, renamed the FRISBEE disc,  and has become an American icon.

In 1961, Wham-O introduced the original Slip 'N Slide, which quickly became a permanent warm weather favorite among kids around the world.

In the early 1960s, Norman Stingley, a chemical engineer, accidentally created a plastic product that bounced uncontrollably. He offered the product to Melin and Knerr and the SUPERBALL bouncy ball was created, followed by the Super Gold Ball, Super Baseball and Super Dice. In one celebrated incident, a giant SUPERBALL, produced as a promotional item, was accidentally dropped out of a 23rd floor hotel window in Australia. It shot back up 15 floors, then down again into a parked convertible car. The car was totaled but the ball survived the "test" in perfect condition.

Read more about Wham-O on their website.

Wham O value

What's it worth? Take a look at this Wham O price guide: sold listings for a value indication.

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