Meet Chassis, a remote controlled /potentially autonomous beer-pouring/beverage-delivering robot, built by Jonathan Foote and Al Honig:
Chassis is a remote control/potentially autonomous drink delivering machine. He’s outfitted with all sort of things that go “whir” and “blink” and is equipped with a nice pressurized pony keg system for beer or wine or kool-aid or what have you. [...]
Chassis is made of several found items and a few things from McMaster-Carr. The red powder coating makes him extra special. Where his headlamp might be is a microphone, and the chrome grill beneath his turn signals is a speaker for audience interaction.
Al N $Steven The operator can be outfitted with a headset and cordless phone transmitter along with the remote control (in this case a controller from the system formerly known as Vex) to make Chassis say hello, heckle, complain, offer prurient robot bartender advice, and let you know when your slip is showing.
Robot that delivers beer?! We have a winner! http://www.suicidebots.com/2008/02/25/hanging-with-chassis/