Molotov
Perfect for Riots
<&molotov>
Fill an empty Glass Bottle using the <link;bottling_machine;§o§nBottling §o§nMachine§r> with <link;immersivepetroleum:fluids;§n§oGasoline§r;gasoline>.
Stuff some Wool or <link;hemp;Tough Fabric;fabric_recipe> into neck of the Gasoline filled Glass Bottle. 

Once you're ready to throw it hold Flint & Steel in your off-hand, the Unlit Molotov in your main-hand and hold rightclick to ignite.<np>
You have §o15 Seconds§r to throw it, otherwise all the Gasoline inside the bottle will be used up and all you're left with is an Empty Bottle again.