My parents were visiting for the long Thanksgiving weekend. I told Mom about the mystery and she decided to participate as well. We worked together to make 384 (plus a few extras) cute little grey and assorted white-on-white 4-patches. We also did a little bit of fabric shopping over the weekend as well...oops!
We are now ready for the next clue!
I'll try to post pictures later of my 4-patches and fabric choices.