SpudFiles

To be honest, I have never seen anyone with or used it, but I could see something useful in it other than it being a potato gun, any ideas?

I've seen people using them to throw pilot lines for rope handling. They seem to work well at that.

I've used them to function check blast pressure gauges.

I wasn't involved but I'm aware of them being used to simulate water spray when submarine launched missiles clear the water.

That's three "non toy" uses.

Then there are the T-shirt cannons popular at Sportsball events. I'm not sure if that counts as a toy or not.

Oh, and some water fountains (see: Bellagio casino in Vegas) are little more than air cannons shooting water slugs.

I was asking myself the same question. Thanks.

To fully utilize a pneumatic cannon, you can optimize the barrel length and diameter for your projectile, and use strong materials for both the barrel and pressure chamber. Retro Bowl College