Now that I've delivered the finished product, I can post pictures.
I went with a brick layout with black sashing and a variety of Dr. Seuss fabrics.
I ordered the fabric from Fabric.com, they had a lot of variety.
I got the black and white polka dot fabric from Joann's. I thought it didn't need another layer of sashing would be too much.
I did a basic black fleece for the back and stitched in the ditch so I didn't quilt over any of the Dr. Seuss fabric.
And it's big enough for little Davis Ray Brown to grow into and use for quite a while.