A potato cannon is a form of Cannon that involves utilizing the Potato Beetle Potato Gun ability in order to shoot a ball with high speed at another ball.

The momentum from the shot ball transfers into the larger ball in the air to make it move at a fast speed.

Shooting too much dung at a gold ball will make it explode (as utilized in Dung Defense.) Something you can do is have a 4 ball which is 1 tick below gold in the air and then shoot a ball into it. This would then merge into a gold in the air but gets the momentum of the cannon without any risk of it breaking.