Using a straight stitch, sew very near the edge of the fabric. There'll be a little seam, but I don’t think you’ll notice it much When you’re wearing the scrunchie. You may as well make a scrunchie without sewing by substituting glue to the stitching. I recommend using a powerful, https://allhealthmarket.com/product/hair-extensions-wigs/hair-extensions/braid/long-braided-ponytail-extension-with-hair-tie-straight-wrap-around-hair-26-inch-brown-black-ombre-braid/