I am pretty much a newbie so don't really have any pattern suggestions. But as a parent of teenage boys(now in there twenties but still boys ;)) I think the material is super. And that guitar material will be important to him. So maybe something with really big blocks to showcase that material. You could maybe even stitch around the guitars to make them standout when you quilt it. You have my mind working now. One son loves his rocking music and that material would make him a happy quilt guy. Have fun!