Going by memory, what I recall Cool Water smelling like is very close to Grey Flannel. Am I way off on that?
It doesn't fit in with the old school Clubman/Aqua Velva/Brut vibe, but I do buy it at Walgreen's: Shea Moisture Tea Tree Aftershave is a really great, underappreciated splash. If I remember correctly, it's alcohol-free. Has witch hazel, shea oil, tea tree, all kinds of skin goodies. Nice grapefruit and tea tree scent. I especially like it with a couple drops of M-Bomb.