One of the novelties in the airport lounge at Narita was a beer pouring machine. It manages to consistently pour a good glass of beer every time. You start by placing the glass in the machine:
When you press the start button, it tilts the glass and pours the beer down the side of the glass:
After filling the glass the machine tilts the glass upright again and some extra foam comes out of the second nozzle:
Not only was the machine fun to watch, but the beer was okay too.