It should probably be mentioned that Molotov cocktails (or "petrol bombs" depending on the nomenclature of choice) didn't just end up serving as cheap ad hoc weapons for the impoverished Soviet and Finnish armies during the second world war; the Third Reich actually mass-produced the primitive incendiaries as a standard-issue form of ordnance for the Wehrmacht.

The Germans manufactured two different types of bombs, each utilizing a specially-concocted incendiary fuel solution designed for maximum effectiveness. The first was the Brandflasche, a glass bottle about 25 cm high and 7 cm wide, filled with a mixture of two parts normal gasoline and one part flamethrower fuel (called "Flammöl.") The other weapon was produced under the name of the Brandhandgranate 48/57, a round glass container about 10 cm high and 8 cm wide that resembled more of an actual grenade. It contained a hearty 500 ml of a mixture of gasoline and benzole.

http://www.geocities.com/Augusta/8172/panzerfaust9.htm