sister's store on Quilt as you go, and these are the fabrics from their inventory to use for the store sample.
From the nine lengths of batik (12" wide) I cut off 8 inches, leaving the remaining 4 inches for later. Then I cut 5 squares from the 8" strips. Those then were cut in half on the diagonal. Because the batik is good on both sides, one triangle could be flipped over to make the mitered square.
And then I forgot about the mitering idea and just did chevrons. Although better, I am still not convinced that this will be the final layout.