In this video I make and demonstrate how I made a green flamethrower from a squirt gun, antifreeze (methanol), and Roach killer (Boric Acid). I hacked this squirt gun flamethrower together for only $10! The ratio of methanol/boric acid :12oz of methanol 1 teaspoon of boric acid. Methanol is sold in America as "HEET" in the automotive section of almost any store. You can not drink this alcohol, its poisonous! Boric acid is sold as a roach killer in a lot of stores also. its a white powder. Even though its sold as an insecticide, its so safe you can buy human grade boric acid as an antiseptic, and to help athletes foot, cool!