Welcome to Gaia! ::

You take a length of PVC pipe. You cut it to the size you more-or-less want your sword to be at.
You then take those water noodles that you see in pools- The thickest kind possible is better- and you cut it about a foot or so shorter than the pipe, depending on the length of the pipe.
You then put the pipe through the hole in the noodle, leaving at least three inches of hollow noodle at the tip (This helps you avoid getting hit with the pipe.) and you duct tape it on there, or something like that, so that it won't move. You now have a blade.
You then take a five or six inch section of the same water noodle, and put it on the bottom to make a hilt, following the same duct taping procedure as above. Although this is optional, I would recommend it.
Now that you have a weapon, you can play the game.

This is a game of swordfighting (Or other weapons once your experienced enough to make them). As such, there are rules. First: You all start at the same time unless you decide otherwise. Second: You set an objective. (At first, just try and defeat the enemy team, and later you can move to more complex games like VIP, Capture the Flag, or Assault.) Third, give dragonmail to whoever you want. Dragonmail basically means that you have to hit whatever section X more times than one until it's dead. Set the value for X.
Now, for engagement. The body is divided into seven sections: Head, body, L. arm, R. arm, L. leg, R. leg and groin.
Head and groin are completely immune. (Head extends to neck, and once it starts to curve, it's then body.) Don't aim there!
The arms require one hit each (Unless you have dragonmail) Once an arm has been hit, it's now dead. You can't use that arm, and if you're holding a weapon, you have to drop it. (You can switch which arm is dead after you've been hit if you want.) Also, from the hand to about mid-wrist, is gauntlets. Those are similar to the head and groin, they don't count.
Legs are the same as the arms, except once one is dead, you can't run or jump, only walk. Once the second is dead, you either have to keep your knees together, or you have to kneel on the ground.
Once you get hit three times in any combination of arms and legs (You can only count an arm or leg once!) you're out.
If you get hit in the body, (Belt to neck in front, butt to shoulder height in back) you're automatically out.

Remember, this game is only fun if you're honorable, and admit if you got hit! It doesn't matter if you win or lose. Gradually, you'll get better and better, and you can try other weapons and game types. The only thing important is that you have fun!