How to sew Scrunchies for dolls...

        The Scrunchie was patented in 1987 by Rommy Revson. She created the first prototype of the Scrunchie because she wanted a gentler version of the metal hair ties used in the 1980s. Revson named the decorative hair accessory the Scunci after her pet toy poodle. The name Scrunchie was a natural evolution, because the fabric scrunched up. After patenting the Scrunchie, Revson spent most of her time in legal disputes, both with manufacturers and her own lawyers. Scrunchies were particularly popular in the 1980s and 1990s, including larger, more elaborate versions.Scrunchies regained popularity in the mid 2010s. Wikipedia

Make two Scrunchies alike so that your doll can tie two ponytails in her hair. Dolls may also wear their
Scrunchies on their wrists until they are ready to tie their hair up. Scrunchies were very
popular in the 1980s and 90s.

        The following supplies are approximations; it really doesn't matter too much if your fabric scraps are a little larger or smaller for this craft.  Everyday Scrunchies that your dolls wear to school or around the home are used to keep her locks neatly in place. The hair wraps should be long enough for you to double up the Scrunchie at least once around your doll's hair.

Supply List:

• 8" x 2 1/2" lengths of scrap fabric
• needle and thread to match
• elastic approx. 1/4" at least four to five inches long
• safety pin

Step-by-Step Instructions:

1. Cut a 8" x 2 1/2" length of fabric to make one 18" doll sized Scrunchie. 
2. Fold it in half, right sides together, length wise and iron it flat.
3. Sew a straight stitch lengthwise, leaving an approximate 1/4" seam from the raw edge, from end to end.
4. To turn this narrow tube of fabric inside out, use a safety pin. Thread the tip of the safety pin into one end, one side of the tube only. Close the latch.
5. Now thread the safety pin inside the long tube, until it comes through the opposite end of the Scrunchie. Your tube of fabric should now be turned right sides out. 
6. Iron the Scrunchie tube flat. 
7. Next, you will need to thread the elastic through the fabric 'tunnel'. Use a safety pin to work the elastic through the tube in much the same way as done before. Stick the point of the pin firmly into one end of the elastic and close the latch.
8. 'Thread the elastic through the fabric tube opening, holding on to the beginning end while working the safety pin out the opposite end. 
9. Tie the two elastic ends together firmly or you may wish the sew your elastic ends together if you are using something wider than a hair tie.
10. Thread your needle and stitch the two fabric ends together neatly in order to create a finished doll Scrunchie.

Left, the safety pin threaded through the elastic and the elastic threaded through the Scrunchie.
Center, finished Scrunchies made from left-over scraps of fabric. Right, a Scrunchie worn over a
simple pony tail in our doll's hair.