Okay. Thank you all for those thoughts. I sent the pictures to the bride and groom and they don't like the half star border at all (design #1). They think that's too busy. Since those really don't fit right at the corners and there's just no way to 'make them fit', that's probably a good thing. They like the spear points or the ribbons. I decided to draw in some quilting ideas to the ribbons design and this is what I've come up with so far.
Yes, I know that I will have to lay the star out on the bed and see where these added elements fall. And, finding out about a dust ruffle, etc., would be good, too.
I might throw out all 3 designs and start fresh. Who knows? This designing stuff is hard.