I just wanted to add what else will go into the overall decorations.
The plan is to add what my wife calls my "Redneck Tiki Torch" which is simply a propane regulator attached to a valve and a long brass pipe with a tin can poked full of holes on top. It looks like a big ball of flames on the end of the pipe. in the grass alongside the tank will be an EMPTY, repeat EMPTY oxygen tank with the safety cap on it and another EMPTY CO2 tank. Inside the yellow barrel will be a green light with dry ice making green fog coming out.
If I can find one I plan on having a yellow rotating safety light, like those on top of a tow truck, flashing and that sound of an alarm blaring. (Same as the siren ring tone on the iPhone)
I will have video when it is all done from Halloween night.