Sarah's Yarns offers the Icelandic Shawl yarn as a kit at a very reasonable $17.50 for the whole thing.
Knitting Daily offers it as a free pattern after you register for the free newsletter. (See link above.)
I understand there's a KAL somewhere on the web already in progress. I won't be ordering the yarn any time soon, so I'll have to pass on the KAL, but I thought I'd mention it since at that price, it's very low-impulse-control friendly for anyone else who might want to.