G-10 or Garolite is an amazing material for boatbuilding or custom fabrication. You can get it in sheets from 1/32" to 2" thick, solid rods, or tubes (hollow rods). It is basically an epoxy/glass material that is tough and easy to work with due to the extensive shapes you can buy it in.
Make sure if you are gluing G-10 that you sand it up real well, as it has a very smooth, almost glass like surface when you buy it.
Here is a better link for a supplier:
McMaster Carr; G-10 supplier and search for "G-10".
McMaster Carr sells all sorts of stuff, but I mostly buy G-10, plastic sheets or rods, teflon, delrin, wierd SS fastners, titanium, aluminum; all of which you can get in relativly small quantities. Get their catalog if you are so inclined-you will be amazed at what is in there! How about left hand thread, metric hex cap bolts in either SS, zinc plated steel, or titanium!
Peter