Wham-O Inc. is an American toy company based in Carson, California, United States. It is known for creating and marketing many popular toys for nearly 70 years, including the Hula hoop, Frisbee, Slip 'N Slide, Super Ball, Trac-Ball, Silly String, Hacky Sack, Wham-O Bird Ornithopter, and Boogie Board, many of which have become genericized trademarks. From Wikipedia
