The second sock in this month's "Socks From The Toe Up" (SFTTU) Knit Along (KAL) is the "Lacy Rib." I'm using Araucania Multy (Color 312). I have the first sock done and the second up to the gusset. I like the way the semi-solid yarn is turning out for this pattern. Many of the KAL socks on Ravelry for this KAL are either multi-color variegated or striped, and most of them aren't the greatest for this pattern, though some are pretty, of course.
I have a little over 1/3 of the yarn I started with for the first sock. If I make a suitable partner for the yarn and have similar yardage, I could use the 1/3 and 1/3 balls to make a striped sock the same height. Hmmmm... perhaps purple...