Bernat offers a free on-line scarf knitting pattern accessed
here when you sign up for their newsletter. It is called the "Chain Stitch Scarf". I followed the basic instructions, alternating yellow and green Bernat bamboo yarns.
Embellishments to the original pattern included a decorative picot stitch in the center of the middle stripe, and an I-cord was knitted around the perimeter in another color of green. The attached I-cord (
instructions here) gives it a more finished look.
Visual instructions along with verbage regarding the picot stitch can be found many place on YouTube.
This is the link I used for the decorative picot stitch in the middle of this scarf, using a cotton sheen yarn by Berroco.
Ravelry buddies, here is the finished scarf (dimensions 52" x 7"):
This is the 2 inch lapel pin, highlighted by cobalt blue, accessorizing the scarf: