Another idea is to cut some of them in half and then sew 3 together to make a little block. 4 1/2" x 4"
You can alternate those with plain blocks - in a staggered brick pattern.
Try cutting those little stripy blocks into triangles - perhaps of a odd size, but you can make a same size pattern to make plain triangles to combine with them into a pinwheel or other patterns that can use them.