Plunger

After the Master's body was augmented by Dalek technology, he had a plunger in place of a right hand, though Emma pointed out that the Master didn't know what it could do. (TV: The Curse of Fatal Death)

Upon seeing a Dalek at a UNIT warehouse, Cleo Proctor observed that it had a toilet plunger sticking out of it. (AUDIO: Recruits)