Just a random thought, what about a Nail gun. I'm not too sure on the coding, so I don't know about separate ammunition etc, as I think it's either electronic or gas-powered. But, of course nails are highly needed (I've seen from other stories and suggestions and guides). It could be something like this: Nailgun. 30 nails at once. Requires a new battery every 90 nails (Unsure if can be implemented). Very weak. Not very accurate at longer ranges. Quieter, but still a small sound. I have a few ideas about it, but I'd rather see if this idea is okay or a flunk before posting anymore just in case.