Many years ago I bought this really great hair accessory, the name of which I have no clue. I have looked for another one over the years, but no success. So, you know what I had to do. :)
When I took these pictures, my daughter had just gotten done straightening her hair. A ponytail was as far as she would go, but if you put your hair in a loose bun, this looks even more beautiful.
Turn each short end over 1/4", and then turn over again, forming nice hemmed edge. Stitch.
Sew long edge of each fabric piece, forming 2 tubes. Turn right side out.
Sew one short end of each tube closed, enclosing one end of elastic inside the seam.
Thread elastic through tube and sew into seam at other end.
You now have two tubes of fabric with elastic sewn inside, caught in each end seam.
Allow to dry for several hours. To wear, slide one hair comb into hair, then, holding other comb in hand, stretch across to other side of head and slide other comb into hair. Fluff fabric. For ponytail, pull hair through, between the two tubes, encircling ponytail before inserting second comb into hair.