My husband's aunt owns an alpaca farm in Virginia, and she gave us some huge cones of alpaca yarn. I found a pattern in the most recent issue of Interweave Crochet for an alpaca shrug (or as I like to call them, "sleeves") which looked too scrumptious to pass up. So I doubled the brown yarn and started crocheting away. I didn't like the striping on the pattern, so I did a few stripes of single crochet directly on top of my previous rows. There's a name for this but I can't remember it.
Hoo boy are these things warm. (Thanks to Sheila for suggestion this use of the alpaca in the first place!)