Every time I see those old films, I think, "Damn! The meth must have been strong back then!", and it's not just the speed of the film.
I have thought about mounting a snowmobile parachute to my offroad trike though. If it didn't float me leisurely to the ground after accidentally careening off a cliff or towards a tree, at least it would slow me down!
http://cs.amsnow.com/sno/general_discussions/f/14/t/57389.aspx
http://www.stroudsafety.com/DragChutes.html