Nice Michelin Man Lifeline! In a way, replacing O-rings is what got me back into GIJoe a few years back. I found my Collector's Case of O13 (12?) and wanted to help the poor soldiers out. Probably Googled "GIJoe rubber band" and ran into YoJoe.com. Instead of selling the entire collection, I'm in a second childhood and have bought a lot of stuff I never knew existed back in the days.