[mavamaarten]

I remember shooting a potato into a wall, hoping to laugh at the potato becoming mush. There was no mush. Only potato dust.

[ahartmetz]

Same with an apple, only a wet patch on that steel door. Bouncing potatoes off the surface of a lake was fun, too.

[rolph]

you have to freeze the potato for more "lolz"

[RicoElectrico]

If you freeze it, it won't cut to the diameter of the barrel.

[katbyte]

Use paper towel as wadding

[rolph]

you make a number of spud pellets, you freeze them after

[BizarroLand]

I like how when someone offered an idea that turns a mildly dangerous toy into a decidedly lethal weapon, rather than dissuade others of the terrible notion we went into problem solving mode to increase reliability, quality, and to minimize the potential hassles inherent with the lethal solution.

[gorlilla]

Schedule 80 pvc is pricey. I found that a 1" barrel accepted s that had been wrapped in a bit of duct tape to form a snug seal.....