Originally Posted by QuiltnNan
This site gave me an idea for you. Take the silhouette of the swimmer, make a large applique of this for the center and then take various blocks to build out the quilt top from there. Colors, I would stay with the blue, blue/green, white families.
Better yet, if you happen to have a picture of your grandson, use that and create a silhouette picture of some kind to create the applique.