I have not, but that sounds like fun. I wonder if propane would work just as well.
Naaa, just go by a shop and grab a tank....we 1/2 sank one in a pond once and shot it....we counted 89 dead fish (something we hadn't even thought of) and we were about 15 meters away and were completely soaked. Beer and weapons...awesome.
(just watch out for the static electricity, lmao! You don't want to carry it to the firing "hole")