When I saw the chair the first thing I thought was hoola hoops.
And then I stumbled on the lady gaga hoops topic : http://www.craftster.org/forum/index.php?topic=346393.0 you should check it out, there are great ideas over there.
AND Please let us know if you succeed. I should not have looked at the chair because now I want one too. And even if I could afford it they don't sell it in europe.