Look closely and you can see the even more bonus triangles at the tips of the red fabrics, from the Pineapple Blossom blocks (Bonnie Hunter pattern).
Set block to block they make pinwheels.
But I love this star effect setting. A great many of these reds were from a 3" strip swap I was in years ago with the Yahoo group I used to be active in, Quiltbuddies.
Some sashing and a border, maybe a triangle shaped section added to both ends, and a tablerunner is born. I'd like to keep this all red and white so a trip through the stash is up next. I love leftovers!