https://www.space.com/17589-pongsat-ping-pong-balls-space-balloon.html
Pong Ball Satellites' Balloon to Edge of Space | PongSat | Space
Sep 13, 2012 - A clutch of 1,000 ping pong balls transformed into homemade "satellites" will take a balloon ride to the edge of space on Sept. 29 in a flight by JP Aerospace.
edge of spacepong ballsatellitesballoonpongsat