DZL-3 Waiter Droid

The DZL-3 Waiter Droid was a model of waiter droid developed by Serv-O-Droid.

Appearance
The DZL-3 was a simple-looking droid. It had a trapezoidal body, two thin-looking arms, and had four legs ending in roller balls which allowed the droid to travel around restaurants to deliver food to tables.

History
The DZL-3 was a droid intended by its creators to assist the UL-series Waiter Droid at restaurants. While the UL droid took orders and collected tips, the DZL-3 would serve food and drinks. The DZL-3 also acted as a busboy, cleaning up tables with spray bottles and napkins and collecting dishes to be taken to the kitchen to be washed. DZL units were found throughout many restaurants in the galaxy, and some of them even managed to find work in the mess halls of various Republic and Imperial garrisons.

Trivia

 * The DZL-3 droid is an expanded version of an unnamed Waiter droid from Star Wars: Droids.

Source
The Essential Guide to Droids: Star Wars: Droids Edition