Matt Newcombe had a very neat idea for this.........(sorry for stealing ur thunder Matt!). He cut the 'coiled cord' from an old telephone, fed each end of said cord through the end of the bogas & a D ring/carabina respectively & then secures each end of the cord with some kind of tape that shrinks when you apply heat to it. I think he poured hot water over the tape. Been meaning to ask him what the tape is & where he gets it from. Perhaps he'll pick up on this thread.