I finally located the perfect product that allows me to carry my water bottle on my handlebars. The Forte Water Bottle Cage Bracket. A really quality product that was easy to install and fits really secure.
2011 Novara Forza Hybrid, 2005 Trek 820, 1989 Cannondale SR500, 1975 Mundo Cycles Caloi Racer
My wife's bike frame doesn't have any mounts for a water bottle so this thread interested me. I found a top cap cage mount from King Cage that I think I'm going to buy for her as a stocking stuffer. See it here, second product down, on the right side column: http://www.kingcage.com/products-waterbottle-cages.html. I think this would be a little less distracting and possibly a bit safer, with the bottle held in a more horizontal position.