Punishment Cube

The Punishment Cube is some kind of Decepticon technology used for punishing people. Presumably it requires one to have a goatee in order to be qualified to use it.

Fiction

Dreamwave Armada comics

Megatron threw Leader-1 and the Destruction Mini-Con Team in the Punishment Cube after they betrayed him. Leader-1 was eventually released, but the others were never seen again. Worlds Collide, Part 1 of 4

Panini Armada comics

When Cyclonus returned from a failed mission to capture some Mini-Cons, Megatron ordered Starscream to prepare the Punishment Cube for him. Armada #9