In a smaller version I took a $10.00 oak folding tray from Wal-Mart and covered it with 2 layers of Quilters Dream Deluxe Batting. It is heavier than the Select weight and I would assume heavier than the Warm and Natural. Then I put on a layer of cotton duck and stapled it to the bottom. It goes with me whenever I go sewing. I don't think the "silver" stuff would be necessary.