lol! now I've gotta make the bong!
The pipe is SIMPLE. Do what juggalo said. When you smoke it, you put the weed where the flame would normally come out, and wrap your lips around where you would normally put fuel into the zippo. Also makes sure the tiny flippable metal peice opposite the flint is turned up. That's it.
And becuase theres a big hole inside the pipe, when you're not smoking it you can put weed and if you want, some matches (which tend to work better than a lighter for this). That's it. It's cool becuase it all goes together and is completely stealthy.

But that bubbler... nice...