Yeah,a potato cannon,you can think that's only an stupid idea,BUT NO!!! The potato cannon is the only weapon to use something that can be farmed (Oooooooohhhhhh!!!), and when used on the enemy,if it's flying,he'll fall because the impact,and if he's on the land,he'll receive a great nockback,Yup,that's what i said,and more,you must stay aware that the cooldown to shoot it will be about 3 or 5 seconds,but it will give A GREAT AND INCREDIBLE DAMAGE,oh yeah!!! But attention,don't let the ammo of the Potato gun near raccoons.
I think this should be a modders job to add in, not the developers. why would you be using a potato cannon when have the technology to travel the stars?
Will deal a great damage,the potato speed and the impact,will deal a damage that can make the mobs stun for a while. Someone that wan't something weird...or something strange....