Batwoman Costume Diy . Cut off one of the handles and fray the end of the rope. How to sew a batwoman costume: Batgirl Halloween Costume Contest at Batgirl from www.pinterest.jp Take 2 pieces of 2″ in length elastic and hot glue on ends of the inside of belt (adjust so that it is a snug fit on child). For the gloves and boot covers i used mccall's m7397 and cut all the pieces in the largest size (it’s easier for me to take these things in then it is to let them out). Hot glue small logo on the center front of belt.