I'd like to learn this method as well. I am trying to find some good resources, but I think in the end I will end up taking a class because I don't know anyone who can show me in person. I did find this, though.
http://www.joann.com/joann/catalog_o...1&PRODID=11900 It's a tool to make your own, it folds down the sides apparently while you iron. :D