I just got involved with a group making pillow case dresses for missionaries to deliver. Since the pillowcases are donated and I have lots of trim, the most significant cost is the bias tape - 2 yards per dress. I'm lucky to live near the Berwick- Offray ribbon outlet and picked up grocery bags stuffed with ribbon (5 bags for $1) last summer. I've got a LOT of 1 inch ribbon, mostly grosgrain some satin. Could I fold that 1" ribbon in half and use it in place of bias tape around the arm holes? Or would it be to rough? Or not be easy to use because not cut on the bias? Or come untied more easily than bias tape? I'm really tempted to try because of the significant cost savings.