Have you looked in your yellow pages under Lumber Stores , not Home Center stores?
I got 1/8" mahogany at our local Forest Lumber here in OKC. There's another place, Hope Lumber that could get it. I got 4x8 sheets for about $10 each. I put two layers, the first with Liquid Nails/Loctite adhesive and brads. Then the second layer , with grain in the opposite direction and adhere'd that with contact cement - man did it stick !!! be careful !! and brads. It has done well so far , but hasn't traveled.
If I had a way to bring it to Louisiana, I could bring it to you! but it won't fit in my Honda!
Good luck....