Perhaps your psycho-killer is also a creepy handy-man...yikes!
This realistic pipe-wrench looks like it has seen a fair share of action over the decades. Trying to put together a creepy handy-man costume or maybe more of an original psycho-killer getup? Now that would be quite the terrifying character. Now whether this 'action', in the backstory you create, will be referring to having fixed a lot of leaky pipes or having bashed in many a heads is a decision you will have to make..