LETTUCE EDGE RUFFLES on your sewing machine. This is the type of curly edge ruffles on chiffon or tulle that you often see on pageant dresses. Easier to get waves if you cut strips on bias. French seam the bias strips together to eliminate whiskers at the seams. 1/4" turn hem with about 50# weight fish line encased in fold. Zig-zag in 2 passes with buttonhole foot rather than doing one heavy pass. Zig-zag works better than serging.