Thank you ladies for all the good ideas. I plan to make 40 more log cabins to complete the center and then add a narrow floating border and then another row of 1/2 circles to create that scalloped look and will bind with the multi colors. At least that is the plan today - it could change mid way through those 40 blocks

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Grannies G - this pattern is from "Sew Kind of Wonderful" and requires the Quick Curve Ruler. It is part of a block of the month series using the ruler - here is the Youtube tutorial:
https://www.youtube.com/watch?v=jmQBs8E7ESQ