Longchamp exhaust hangers

I tried McMaster-Carr (www.mcmaster.com) with no luck. I've seen similar on exhaust hangers for Toyota's.

Hi Andy,
It's not that simple because hooks on exhaust an body are very large and distant each other. When installed, you need the 20mm diam for the ring to match the hook, and the inner CtC distance is around 100mm so you realy need something big to make the link.
I already have asked several supplier in UK , and the bigger they can propose me has a 12mm ring, 50 mm ID and 75mm OD as a result. I can find the same in france at Lorry's shop, but when you have them in hand you see it will not work, too weak and narrow.
I can of course cut the current brackets and reweld custom ones to match hangers I can find, but I think it's not in the spirit of such a car, isn't it?

I would suggest looking for an industrial "rubber and gasket" supplier that could cut the rings from sheet stock or possibly have cord stock to make the ring. they my even have the capibility to "melt" the ends versus gluing.

PS
I latter googled "Exhaust Hanger - O Ring" and got several hits where these are used