Weapon of mashed destruction

I wonder what the laws are in New York City governing the building and firing of potato cannons, aka "spudguns?"

"I think at the heart of every Appalachian American is an inventor-scientist," [spudgun builder Rob Payne] writes. "Taking an ordinary object and using it in a way that was never even conceived by its designer is what we do best."

My people, my people.

Tater Shots: Boys Love 'Em (Washington Post, September 3, 2006)