Make a Beer Engine September 01 2015
Here's a neat -- and cheap! -- project: Convert a barrel that's past its prime into the ornamental part of a beer engine. It cost less than $50 in parts (RV water pump, 1/4" beverage tubing, swivel nut, MFL disconnect), and he put it together in less than an hour. There is no sparkler tip necessary, just some 3/8" gas line to reach to the bottom of the glass.
You could build and install the engine anywhere, really, but it looks pretty sharp with the barrel.