http://www.elasticsteel.com/prv8powerironcoill.html. It the bomb, I been doing it for a year it's still the bomb You do need a rope and a place to attach it.
I have the same thing. As a teenager I was ashamed of it. Than I realized that it doesn't matter, and no one pays attention. Just keep training and forget about it.
One routine that helps with over all flexibility is sun salutations. You don't need much space for them. http://www.scn.org/anon/dossiers/namaskar/namaskar.htm