The yellow is what I was thinking of using to join them together and for making a wide edging.
I wasn't going to bother blocking these squares, but looking at the photos, maybe I should.
There are actually about three different dyelots of the off-white here, so I think I'll have to be careful to mix them up evenly before joining them. It will be 14 squares by 12. Don't know what that comes to, but I know it's a lot, LOL.
I've been playing with wool fabric and cutting out shapes.