The MixRMastR was a series of droids designed and built by Cybot Galactica. The MixRMastR was a series of droids designed and built by Cybot Galactica. It was the most common bartender model on the market, followed closely by LeisureMech Enterprises' C5. Vaguely humanoid in appearance, the MixRMastR was a common sight in taverns located within or near busy starports, where repeat business was valued less than efficient service.