Frisbee golf athletes and ultimate aficionados everywhere should take a few moments to mark the passing of Walter Frederick Morrison, the man who invented the Frisbee. Morrison, 90, died this week at his home in Monroe, Utah; his son says he had cancer and that “old age caught up” with him. According to historian Phil Kennedy, who wrote a book with Morrison in 2001, Morrison got the idea for the Frisbee while tossing around a tin cake pan with his wife on a California beach. After returning from service as a pilot in WWII, he began exploring ways to make cake tins fly better. By 1948, he was manufacturing flying discs himself. In 1957, Morrison sold the production rights to his “Pluto Platter,” which later became known as the Frisbee (after the Frisbie Pie Co. in New England). Walt is survived by his three children.