The site is being pounded right now, so you might want to come back in a day or two to oogle the evil goodness. There are even instructions for building your own flame thrower. From the site:
The most common reaction I get (aside from the goat fuckers who always yell out "Ghostbusters!" when I drive by, and yes, they are goat fuckers, don't fool yourself) is "Isn't that dangerous? Having combustible gas on your roof?" to which I have to give a little PSA on propane.
Propane is actually pretty damned safe, at least as safe as you get when you are in the market of 15 foot fireballs. Propane, hydrocarbon C3H8, requires a combustion point of at least 940 degrees. Gasoline on the other hand has a combustion point of 430 degrees, and a Cadillac tank holds some 30 gallons of this stuff. If my car ever did get to a temperature of 940 degrees, I somehow gather that my problems are going to be much bigger than a ruptured propane tank.
This is the kind of shit that makes this the greatest country on the face of the earth. (snif)