This is why I love this place so much! Thanks very much for the great advice.
I have 5 nieces and nephews between my side and my husband's side of the family. DH thinks I should only make a quilt for one side as the other side won't even say thank you for birthday gifts. He knows that's not why I give them gifts (although a thank you would be nice) but because I love them and I'm a maker. I give them handmade, sewn gifts all the time (last Christmas it was book pillows; they were a hit). However, I think of a quilt as a milestone type of gift. My DS is the only nephew the parents of my nieces and nephews have and while he gets presents from them (and always sends a thank you note!) I think my giving a quilt on a random birthday would be overkill. Does that make sense? Different family dynamics I guess. I am the favorite aunt on both sides though, so I could get away with it.
I love the idea of making a high school graduation quilt in their favorite colors, but in an adult pattern and fabrics. I'll stick to my original plan, unless I change my mind

. The beauty of being a quilter is there are always reasons to make a quilt!
Thanks for the great advice and insight!