Patterns available as Ravelry Downloads

Crochet: Cowl
Use three colors at the same time and you only need to weave in the ends at the beginning and the end!
Crochet: Scarf, Cowl
This a a great pattern to use up a skein or two of yarn. I loved using yarn with long colorways. The pattern takes you through the steps to make a cowl or scarf in any size. All you need to do is crochet a gauge swatch and do a little math.
Crochet: Scarf
This is a great stash buster.