Yes yes, all the fan fair. But OP, if you get into building your own coils please don't be a noob about it. It is really pretty important (since it hasn't been mentioned) that you understand the safety aspect of what you're about to get into. When you build a coil, it will measure out to a certain resistance (ohms).
If you build it to a low resistance, please be sure that your battery can withstand the amp draw you will be imposing as opposed to arbitrarily twisting wire. If you exceed your battery amp limitation you ARE risking thermal run away. This is when your battery becomes unstable. If this happens, your battery can become unstable and vent chemicals, catch fire, or explode.
What you need to know in short hand is that voltage/resistance = amps. If you exceed the amp rating of your battery.... thermal run away can occur. Please don't get yourself (or others) hurt. If this sounds crazy just pm me and I'll help you out gladly.