“Back to the Future” Hovercraft Visits AT&T Ballpark in San Francisco“Back to the Future” Hovercraft Visits AT&T Ballpark in San FranciscoOnce in a while I come across crazy inventions that I could never see myself owning. This is not one of those inventions. I NEED one of these and right now would be good.Gaylord FockerGaylord Focker