Once donned, the wearer cannot eat. Their moans of hunger will echo through the pot, distorted into braying and roars. As they grow more emaciated, the remaining flesh becomes harder, turning all but the surest blows. They will be able to tear men in half.
They cannot see through the pot, and so swing their clay heads left to right, listening for you.
Now loose them into your labyrinth to stumble and squat and hunt in the dark.
This is one of the paths a man could walk to leave mortality behind.
HD 4* / AC as Unarmoured / Damage with Advantage