While I was wandering parts of the internet, when something caught my eye.
I thought this was a pretty simple to build prop that could make a scenario awesome. Imagine having to assault and capture a mortar position that is pinning down a friendly fire team.
Admittedly I am not sure if a field would allow it because technically it is pyro device. But Rubbing alcohol is fast burning and fast evaporating so the odds of it setting fire(unintentionally) would be highly unlikely. You could dispense the propellant into the projectile(bottle) with a hairspray bottle. A penny hot glued to the bottom of the bottle ensures it falls bottom first. Giving the bottle the most drag as possible when falling. Even though I don't think anyone would be hurt from a falling piece of plastic. Or If you want to be super safe, Tether the empty bottle to the launcher with a short bit of fishing line. You still get the whoosh sound of a airsoft mortar.
Anyways just a idea. What do you guys think?