http://www.aprperformance.com/index.php?option=com_content&task=view&id=83&Itemid=44 
  
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Heres the one APR sells, way to expensive, but a good example. 
  
Ive been looking at sheets of fg, lexan, polyurethane... all possibilities. Im going to try and look locally for something around 1/4 inch for around $50.