I have compiled patterns for three of my "Divergent" fan scarves into an e-book available in multiple formats (including printable PDF) on Smashwords. Buy the book once and get access to all the formats. You can keep patterns on your Kindle, Kobo, Nook, or Sony device, read them online, or print a paper copy.
The Abnegation, Candor, and Factionless scarves are included in this volume, along with a bonus pattern for my all-time favorite shawl/scarf in drop-stitch lace.
Here is the Factionless or Faction Unity Scarf. It incorporates all the colors of the various factions in the Divergent trilogy novels. Every color touches every other color at least once. It was knitted flat in stockinette stitch, 12 rows per stripe, then seamed up the side to make a tube. The multicolored fringe closes the ends of the tube for a cozy, 2-layered scarf.