Once I actually focused on working on the blanket, each square took me just under a week. Joining the squares took a little longer (grafting 230 sts gets a little tedious) but the result is so dang CHARMING that I couldn’t help working on it as often as possible. I used somewhere under 2.5 balls of the blue, only because I used blue for the border instead of a fourth color -- 2 balls was comfortably enough to knit five yellow squares plus four yellow centers and the four little yellow corners. First completed knitting project for Munchkin! Less than two months to spare!