I have been meaning to do this project since I first found it. I am not sure if I haven't found the right towels yet, or if I just have too many UFOs floating around to start another big undertaking...
One bath towel (the thinner, the better) at least 24" wide and 35" between the woven bands at each end
6" length of 3/8"elastic
sewing thread to match towel
Fold the towel in half lengthwise, right sides together. The fold is at the top.
To make a pattern lay down pattern paper or fabric in between the insets of your towel. Measure 12-13" up on left (to create the back) then 12" towards the right along fold. Then measure 36" (or less depending on your towel) along the finished edge over from the left (back) line. Measure up 3 1/2", then connect the top of the 3 1/2" line to the 12" line at the fold.
If your towel is only 24" or 25" wide, do not cut along the fold at the widest part of the Head Wrap. Use the fold instead of making a seam there.
Cut out your towel using your pattern, if you don't want to use a pattern I'd draw a chalk line of where I wanted to cut. Cut along your lines. keep right sides together.
Fold elastic in half. On the back seam (12-13") measure up 3-1/2"from the finished edges and pin the elastic between the layers, with the cut ends of the elastic extending 1/4" beyond the seam allowance. Sew a 3/8" seam all along the cut edge (tapering into and out of the fold if your towel is narrow). Serge or over edge stitch the seam. Reinforce the seam at the elastic.
Turn the towel right side out. The elastic loop should stick out at the back seam.
To use the Head Wrap, lean forward so that your hair falls in front of your face.Place the back seam of the Head Wrap at the back of your head and allow the rest of the Head Wrap to fall forward over your hair. Twist the narrow end of the towel (with your hair inside), then tuck the twisted end into the elastic loop.
If you wish to embellish the towel, put it on your head as described above and mark where your ear is.
This is where you can embroider. Select a design that is fairly open so you will not have something hard against your ear.
You could do allover decorative stitching, monogram... Possibilities are endless