Copper golems activate traps in Trial Chambers

Behind the walls of the trial chamber rooms, there may be copper golems in a room to set off a trap at random via the copper button, like pistons, dispensers with arrows, snowballs, or other projectiles. There's endless possibilities for setting traps in the structure, and it will keep each room feeling unique with different combinations of traps that spawn. Or they could rarely spawn so they get you by surprise when they do.