As much as I complain about having to travel to ride nice trails I appreciate living in place full of specialized businesses that cater to a multi-billion dollar oil field industry. There is one called Acadiana Rubber and Gasket I used them for multiple things and they've custom made me several F/2F manifold gaskets out of material used for turbine engines its a 1 time gasket and you don't have to worry about cracking or burning it from the heat of a header. I also bought some industrial rubber about 3/16 in thickness in a 6Ft x 4FT sheet but they can cut you what ever you need. I'm going to use it for emblems, hinges, and what ever else I need it for. Its good to have. I don't know how willing they are or if it would cost effective if they shipped it but you can give them a call. The quality of the rubber is very good and will last a lifetime on my cruiser thats garage kept. If it don't work out let me know I'll do you a favor and go pick some up for you and ship it USPS it should be to much. I'll post a pick of the material tonight.
http://acadianarubber.com/Home_Page.html