The Frisbee: Military Death Toy.

The Frisbee is popular around the world as an apparent simple recreational toy for young people. However, few people are aware the the "Frisbee" was actually a highly sophisticated aerospace product developed by DARPA code named "FB2300A" with back funding in the 1960's as a high tech development on the "Boomerang" concept and were promising due to their remarkable planar stability circuitry. Millions of them were accidentally produced lacking  the "return to user" algorithms which made them useless in the combat theater. Fred Morrison of "Whammo"bought up the government surplus units for pennies on the dollar, painted them bright colors and successfully marketed them to teenagers. 

 

Today the surplus FB2300As are also used in the wheels of Segways.