I've also started a garter stitch scarf as a gift for my cousin. I'm using Patons SWS "Natural Earth". I love the feel of this yarn, and I love that it's a blend of wool and soy. It has a tendancy to split so I need to keep watch. I initially tried it on size 8 needles and liked the results, however I thought I'd experiment with size 11's and loved the modern chunky texture that was created. I felt that the mixture of the muted colors with the soft, but chunky texture resulted in a perfect scarf to be given to a gay man :)
In other news, I completely frogged my Koolhaas hat. I don't think I'm doing the Kbtl correctly. It just comes out as a bunch of bumps without any real pattern. Oh well, I guess I need to do some more research and come back to it.