Does anyone have any additional information about this?
Play Naked, Inc. introduces the "Flagman", a fully automatic ski flag for safer, simpler watersports. The Flagman has a patented spring lever arm action that brings the flag down as the skier begins, and all during his ride. The moment the ski rope handle is released, the Flagman pops back up! It is easy to install, comes in two styles and an assortment of colors to choose from.
http://www.nmoa.org/Products/npc1999/az.htm