We searched through the various firework related fabrics for something to use in the sashing, and decided on a scatter print of small sparkers (that do sparkle). and the backing is a sunny bright yellow that is the same color as the shirts their employees wear.
I even got out of my comfort zone and stitched freehand stars for the quilting. I decided trying to do actual fireworks would just look like dandelions or worse. Several years ago I read in a quilting book that any freehand motif looks better doubled, so I tried it and I'm pretty pleased with it. I also tried another method of joining the fleece. I had been reluctant to sew the pieces together like normal quilting cotton because I knew you couldn't iron the seams open. I was worried about them not laying flat, so I used a glue stick to hold the seams down during quilting. Worked like a charm.
But this is the best part. The son & father came to my office and I got to give it to them in person. They were thrilled. The best job.