Of all the times I've seen a Rust item brought into the third and lumpiest dimension, I think I like
beebalalou's the most. Why? Because the Salvaged Hammer has a utilitarian look. It doesn't look like a gun, so there's no chance it could be mistaken by the police. And--bonus!--her hammer is actually made of "duct tape, vinyl, pill and cat treat bottles, foam and a plunger handle". That doesn't sound like it could cave in the skull of an enemy. Phew! Here's her work, and the original concept to compare.
I bet it makes a squeak when you hit things with it.