Square by square, the stack of blanket squares grows:

Square 17

Square 18

Square 19

Square 20

Square 21

Square 22

Square 23

Square 24

Square 25

All together now:

I've been asked about patterns for these squares. Truly, I pretty much make them up as I go along! But I expect I'll choose several of them and write up patterns at some point. When I do, you'll see them here...