Just got some peel and stick foam from Wal-Mart craft section, and it works very well for lining the payout tray to reduce noise or scratches, or in the case of one machine erosion of the metal from the coins dropping at a sharp angle. The name of this product is Darice Foamies and it is 2mm thick in sheets of various colors in 9x12 inch sheets for .50 cents each.