I bought some Depron foam a while back, can't remember if it was 9mm or 10mm. Anyway, it comes in sheets that are about, oh, 10 inches by 36 inches. The box came with 5 sheets of the stuff. I searched on-line and found a distributor for the stuff.

RCFoam.com I believe was the site where I found it... I'll check.

Yeah.. http://www.rcfoam.com/?gclid=CK_v5rLojq0CFQXd4Aodu30OoA

They have a pretty good assortment of foam sheets. If you are handy with a sharp knife, well, you can outline your own and go from there. You will probably need some carbon strengthening rods and so on. I bought the sheets just to experiment with.

CGr.