1. To make the flower stems, paint dowels green. Hot-glue a post from a screw post to the top of each dowel. Glue colorful plastic letters to the screw heads.
2. Glue and cut out six 4-inch squares made from two contrasting papers. (Glue them together using spray adhesive or a nonwrinkling paper glue.) Assemble pinwheels, and use the screw heads to attach to the dowels.