A.) At Caesar's, you can see the water droplets. Cascading on this guy, drinking deeply.
B and C.) You caught me: same fountain, different times of day. All, watery and wonderful. At the Wynn.
D and E.) Same fountain, different times of day. But at Caesar's. Framed in juniper and cypress or pine. Or something.
F.) Half fish. Half horse. All Caesar's Palace.
G.) The “Fall of Atlantis” fountain at Caesar's Palace. Candy-colored. Right by Fat Tuesday, helpfully, at the Forum Shops.
(Obviously, this cannot be the ultimate fountain post because, well, there are fountains I haven't photographed yet. Some of them are even not in Las Vegas, NV.)