well they have Electrical ignition lighters where you push down on a button really hard and it shoots a tiny bolt of lightning to the gas outlet and that lights the flame. but why not use a battery to amplify that effect and just light some leaves with a tiny lightning bolt. OR you could have a tiny copper coil around a small battery similar to a car's Cigerette lighter. i have done this before once in real life with a small copper wire and a 9volt battery, it deffinately starts fires... or the battery explodes if you use to thick of a copper wire because it just drains the battery to quickly and it heats up, lol. but electirc lighters are very possible in real life Butane Lighters are just alot cheaper and are alittle more enviromental friendly.
lol ya i know. well im using and i was talking about this one. Petrol lighter (i would say thats its called like that.)