A flame-thrower that can hurl a stream of fire half a metre long is being marketed in China to help women fend off unwanted advances...Yes, Lotharios, at 3,300 degrees F. it will leave a mark.
Some are shaped like a cigarette lighter and emit small flames, while others hurl fire for 50cm with temperatures of up to 1,800 degrees Celsius (3,300 Fahrenheit).
This device would also be a good conversation- and fire-starter when lighting candles on a birthday cake. I checked, but it's not available on Amazon. Sad!
Hat tip: Tyler Cowen