Hello, I have a set of RL60.2 that I got as part of a system. I have noticed however that the speakers do not have the straps (or "ribbons" in the service manual) that wrap around the speakers. As far as I can tell, they serve no functional purpose (maybe stop the front from rattling?) I very much assume that these are no longer available, but has anyone tried making a set? If so, what material can be used? Any help gladly accepted. Even better, if someone has an old set they no longer need...... Many thanks Peter