Potato Cannon

With a Potatoes Per Second (PPS) of 3, the Potato Launcher is the dream of any American farmer. With the average gun cost in America being around $500 to $700, and the average pound of pure potato cost being $1-2, that would make the Potato Launcher cost around 600 dollars on average, and on top of that, it would cost 15 dollars to fire the Potato Launcher for 12 seconds.

Trivia
The potato lawnchair, in Giant Survival, gives you 7 dollars per hit, and 14 dollars per critical hit.