"Gaahh! The mindless pit droids are running loose! They are released by Launchers like this one here."

Launchers were machines that automatically decompressed and released DUM-series pit droids from their withdrawn mode. They could be found aboard Transport Ships.

Around 32 BBY, when junk dealer Watto purchased such a large amount of DUM-series pit droids that it could threaten to overrun Mos Espa, he ostensibly used launchers to turn on the droids individually.