The Oceangazer Shawl Pattern works with sock yarn!!
Using the solid green as my main color, and the variagated Miss Babs as my contrasting color I knit the Oceangazer Shawl pattern with sock yarn and it worked as written. I ran out of the Miss Babs, so I substituted Dragonfly Fibers at the edge, but you can't even tell.
I'd recommend 600-700 yds of each color if you gave this a try.