Here's the scarf I made for my son, Aaron. He requested one done in black, blue, and tan stripes. I used a multi colored yarn with tan in it instead of using plain tan. It's done using Vanna's Choice yarn in Black and Colonial Blue, and ILTY in Blue Camo Stripe.
The pattern I used is for an afghan called Warm Stripes in the 2006 Leisure Arts booklet "Fireside Afghans." I just used different colors and varied the color sequence.