Here are a couple more Zippos. I like the ones with the Heavy plates on the front. The V8 is my wife's.
Here are a few available inserts for the Zippo style cases. Left to right: Super Tank, Z Plus, Thunderbird.
Like it sounds the Super Tank is a large fuel tank that goes into a stock insert with most of the cotton removed. It stores the fuel in its hollow tank and lets it seep into the remaining cotton to travel up the wick. It hold more and dries out slower than a stock insert.
Most folks know the Z Plus. Standard Jet style butane drop in for the Zippo. Strong performer. Works poorly at high altitudes.
To me, the Thunderbird is the star. Has the same type of flame as the stock insert but its butane. So its clean and odorless. Doesn't dry up and doesn't use a wick. It releases gas whenever the hammer arm is down (open position) They make Thunderbird flints, but the Zippo flints seem to work well for me. This is what I use in any Zippo that I carry. My wife prefers the Z Plus. Neither of us smoke.
This is the Zippo fuel canister.
It holds an extra flint and has a tool for unscrewing the flint tube.
I keep extra wick in the cap.
Nozzle plus air hole.
Naptha.
Extra credit: A current pic of my N8 Black Hole