How To Sew A Scrunchie Scrunchies are a great way to use up long fabric scraps leftover from other sewing projects. Here’s how I make mine: Draw a rectangle onto your piece of fabric which is approximately 26 inches by 3 inches.  Light to medium weight fabrics are best. Cut this out. Fold the length of fabric in half, right sides together, pin  and sew the raw edges together.  I’m using a three / eighths of an inch seam allowance.  Start and stop about two inches from either