COSTA MESA, California, Jun 29, 2002 (AP WorldStream via COMTEX) -- Arthur "Spud" Melin, co-founder of the toy company that introduced the world to the Frisbee, Hula Hoop and other faddish gems of American pop culture, has died. He was 77 and had Alzheimer's disease. Melin, who started toy giant Wham-O in 1948 with his boyhood friend Richard Knerr, died Friday. "No sensation has ever swept the country like the Hula Hoop," author Richard Johnson wrote in his book "American Fads." "(It) remains the standard against which all national crazes are measured." Melin and Knerr started with slingshots and...