Hammacher Schlemmer, known for some cool stuff, has a remote controlled floating serving tray. Put some snacks and drinks on it and drive it over to your guests while they lounge in the pool. It has five drink holders and a serving bowl in the center. Control it forward, backward, left, right or rotate it through 360 degrees. They say it won’t capsize, but I would assume that is under normal usage. I won’t be getting one since I do not have a pool, but if you do it will cost you $49.99 to be the perfect host.