Check out Blueberry Hill-Villa Rosa Designs. Its a super easy, quick quilt pattern. You can cut the fat quarters into strips instead of suggested jelly roll. You can use the layer cake for a pieced border(s) of your choosing (to make the quilt larger if you like) or use it for the backing.
Also, MSQC's "The Lattice Quilt". Fat quarters for backing.
https://villarosadesigns.com/products/blueberry-hill
Hope this helps stir your creativity back up.