Droideka dispenser
From Wookieepedia, the Star Wars wiki.
A Droideka dispenser was a large roughly cylindrical box made of durasteel that could both transport and dispense droidekas. These units were used by the Confederacy of the Independent Systems against Republic forces during the Clone Wars to continually dispense a supply of droidekas. The clone commandos of Delta Squad encountered many of these units.
[edit] Behind the scenes
Like the B1 battle droid dispenser, it is unclear whether the units actually had the capacity to produce an unlimited number of droids.
