I think this is a wonderful idea. The future Mrs. Right may not have a quilter in her family who handed heirlooms down. And even if your son(s) never marry or have children of their own, I think it would be very special to them to have something handmade from you. And they don't necessarily need to be bed quilts. After all, what are the chances a quilt you make today is going to match their future decor choices anyway. It's the fact that it came from Mom that makes it special. My mom was given a set of china that once belonged to my dad's mother. It's rather garish IMHO, but the bright green does look kind of pretty with Christmas decorations so it gets used anyway, and we remember Grandma every time we see it. I personally love using things that came down through the family, especially the things they made with their own hands.