So we decided now that they are 7 months we would give sippy cups a try. Levi and Paige took to them nicely. They don't tip them yet but they get them to their mouths. Nathan however couldn't be bothered with this. He turns his head away when I try to help him. When I put it in front of him he either ignores it or knocks it over. We have only been at it a couple of days though so we just need practice! Here are pics from our first encounter!