In Terraria, which of the following items does the Martian Saucer mini-boss NOT drop?

The Martian Saucer miniboss does not drop the Drill Containment Unit in Terraria. This high-speed mining and transportation tool is obtained by defeating the two mechanical bosses, the Destroyer and the Twins, and venturing into the Underground Jungle to find the Temple. There, players can exchange Lihzahrd Power Cells for access to the Jungle Temple, where the Drill Containment Unit can be found.