Question for February 25, 2010

Walter Frederick Morrison conceived and developed X in the 1950s, and hundreds of millions have been sold worldwide since. Mr Morrison and his future wife, Lu, got the idea from playing with a metal cake pan on the beach in California. He originally called it the Pluto Platter and sold it at local fairs. n 1957 Mr Morrison sold the rights to the California firm Wham-O, which discovered that youngsters were calling X by a name, which has been adapted to give X its current name. X is now a cultural icon and many games have evolved around it.

Mr. Morrison died at his home in Monroe on Feb. 9th this year. Identify X.