the company "Wham-O"
The company "Wham-O" invented those two toys.
Wham-o is the famous Californian company that introduced the frisbee in 1957 and the hula hoop in 1958. This was a revolutionary game as it provided us with a active childhood.
the hula hoop and frisbee.
A frisbee and hool-a-hoop put together.
The Hula-hoop was invented by Arthur K. Melin in 1958. Melin worked for the toy company Wham-O and developed it while working with them.
Hooping is an ancient form of entertainment with no one person or company actually able to claim they invented the first hula hoop. Richard Knerr and Arthur "Spud" Melin of the Wham-O company reinvented the Hula Hoop in 1958 after hearing how much children in Australia enjoyed playing with bamboo hoops.
Any type of disk - be it a frisbee, hula hoop, etc. Didn't ask what is spherical and bounces!