In 2005, Open Box funded the installation of a PlayPump® Water System in a local rural area. The PlayPump systems are innovative, sustainable, patented water pumps powered by fun. Installed near schools, the PlayPump system doubles as a water pump and a merry-go-round for children, pumping clean water from the ground into a reservoir as the children play. Wire models of the pump were sent to our clients as keepsakes, and proved to be a huge hit.
http://www.playpumps.org/