eHow - Hobbies, Games & Toyshttp://www.ehow.com/guide_11-http://www.ehow.com/guide_11-hobbies-games.html.htmlwww.ehow.comSewing Piping Cover Fabric in Curved Lineshttp://www.ehow.com/how_4414137_sewing-piping-cover-fabric-curved.htmlIf you're sewing piping onto curved lines of fabric, learn how to add the cover fabric for the piping in this free sewing video. Published on 7/8/2008