Making a scrunchie is relatively straightforward. Afterall, it’s just a tube enclosing a loop of elastic. The trick is in how to make a scrunchie quickly and efficiently, with as few steps as possible and as little hand sewing as possible, yet with the highest degree of finish possible. I searched but could not find a page with good instructions, so I decided to write one.
I start with a rectangle of fabric, 3.5″ x 20.25″. I prefer to cut it on the bias (45 ° to the fabric’s grain), but sometimes I’d cut it with the grain if I don’t have enough fabric. The length of the elastic depends on your hair and how tight you want your scrunchie. I use a 7 1/2″ length of 1/8″ elastic cord, allowing for 3/4″ of overlap of the ends to form a loop.
“Whip” the ends of the elastic together. I put the ends under the presser foot and zig zag across them as much as I can. I don’t tie the ends together because the knot would invariably slip and become undone. Also, a knot is a bit too bulky inside the tube.
Now, here’s the really tricky part 🙂 : pin as much of the remaining open edges along the long sides of the rectangle as you can. (You won’t be able to pin all of it.) Since the tube will be doubled up inside itself, be very careful not to catch the inner tube in the seam.