Depends on what is 'minimal cost'. I make them but live in Vancouver Canada so the postage would be expensive. Perhaps Hatters Supply House, The Millinary Warehouse, Lenko Supply, check on ETSY.com as there are a number of suppliers there.Are there any hat makers here who would send me a couple of hat liners for a minimal cost? I can trade a piece of my leatherwork for it...or pay cash.