Skydiving Rig

In my next video project, I need to create an effects that looks like a person is skydiving. There is a problem though: finding out how to make it look like someone is floating in front of a green-screen. I have a theory on how we should do it.

The basic idea is to take an office chair, remove the back rest, and wrap it in green construction paper. As the subject is filmed, someone below oscillates the chair with a rig around on the floor; spinning it and moving it in a circular motion. And to give the impression that I want, i'll need to put a fan in front of his face to make his hair act like its being blown. Either that or I make him wear a hat. The illustration below shows what I mean, however crude it may appear