Thanks to all of you for the consensus that a bright and dark green mix would look best with my balloons. So UW, Wisconsin, and UW, Washington are no longer rivals but teammates! I am very happy with how the blocks turned out.
This is a new project during the fun part. My granddaughter will be 14 in July and is nuts about the Beatles. She has painted her room in rainbow colors, so I will naturally make her a rainbow quilt. I just loved digging out my fabrics and deciding to supplement a few low color spots. Out came the old credit card and the new stash will be here soon. I love being a quilting grandma!