Gemm

What a winfall! That's the sort of thing my dreams are made of. :-)

Maybe a disappearing 9-patch with a bold solid (not necessarily white/cream although that is always okay)? Pinwheels or hourglasses? Your blocks are pretty big, but even just a narrow sashing and cornerstones can be effective. Including a couple of pictures - not sure how close they'll be to what you have available, but both were made with "found" fabrics (not specifically purchased for a project). My 9P was made with 5" squares, I think, and the other one is 7" squares, I believe.

P.S. Elainecovid beat me to the idea while I was looking for a picture! Great minds think alike. :-)