I'm not sure if that's even possible with the engine Toribash uses, and even if it is, I don't see any practical use for it. What's the entire purpose of reattaching limbs, and why would the game need it?
This is definitely imaginative and creative, but I just don't see the need/practical use of it (nor do I know if it's even possible). There's plenty more to be worked on to be honest. :s