It would make a better statement to catapult a pig carcass that had been dead for a week up against the front door from afar so as to give it impact force for explosion.
You ever heard of the Chunkin’ Punkins?
A very diverse group of people that have taken ordinary farm and industrial equipment and have built trebuchets, catapults and air cannons that can lob a pumpkin over a half mile.
Now take those ideas and expand over a thousand times all across America, concealed air cannons in old school buses.