After working on this in small fits and starts and misplacing a bag with about a dozen round one centers completed, I posted to social media about the project and as I was coming up with the caption realized there was a better way to join.
Instead of joining across and making one huge blanket all at once, instead I'll now join groups of nine squares in 3x3 grids and at some point, perhaps when I finish the second 9-patch square, or perhaps when I have 4 or more completed, I'll figure out how I'll join them together.
I also need to think of a better plan for storing and grouping the partial balls of yarn. They tangle easily and then I end up schlepping around only a few of the yarns and then I start to plan and over think the squares.
It would be neat to make a few matching specific book covers, but I think that'll happen serendipitously.
Completed 9-patch squares: 1
12 motifs in progress (Round 1 complete: 5; Round 2 complete: 3; Round 3 complete: 4)