Beer Art – an exterior summer and winter brewhouse interior fountain is the thing. I've had a good sized pump and some pond liner for a while, which was just waiting for a design.
My design so far consists of a medium stained oak frame with a vinyl board covered with copper flashing running across the top with several faucets in a row like a tower. Then have the water run down from the taps into items like a drip tray, a stein, a pint glass, maybe an old carboy supported by a fake bar top and front. From there the water will flow out of those items and into the trough to be pumped up again. If I find some old taps, or age some new unwanted taps, it'll gussy it up. Working taps will make it interactive. I'll also make a couple of tap handles that go with the theme.