I don't think I have, but sometimes I wonder... how else could you explain that the moment a new 'sock knitting game' started on Ravelry I had to sign up? I'm pretty sure I won't knit all the patterns, but somehow I couldn't resist to at least participate. And I did manage to knit the warm-up pattern.
The pattern is called Sea Scallops by SLM Design and I found it quite enjoyable to work. Not really what I would have chosen, because I don't knit toe-up socks very often and I don't like having to adjust the needle size to teeny-weeny because of the stitch count, so it was a bit of a challenge for me.
I used a partial skein of Malabrigo Sock in Indiecita that has been in my stash forever, so I'm quite happy that I participated and shrank my stash the tiniest bit. But as I said, it was only the warm-up pattern - we'll see how I do when the 'race' starts.