This is how to make a cheap, easy shirt that says either Team Edward or Team Jacob. If you cant draw, the patterns are readily available photo sharing websites.
This is my first instructable, so please excuse any mistakes.

Step 1: What Youll Need

Find, or buy, a white or light colored shirt, new or used, it doesnt matter. If its used, just make sure its clean.

Youll also need black sharpies. New sharpies work best. The older the sharpie, the harder youll have to press and pressing hard is difficult on a shirt.

DO NOT use red (or pinkish) sharpies. They will bleed on everything is the washer, including themselves.

Youll also need a piece of cardboard roughly the size of the shirt. They do make cardboard for this at craft stores, but for drawing on them in sharpies, a regular piece of cardboard works fine. I wouldnt suggest a pizza box, or anything else greasy.

Step 2: Getting Ready

Youll probably want to put the shirt on and mark the general area you want the design to be, but its not nessesary. For this use a pencil, not a pen. A pencil will wash out within a few washes, if not the first time.

Put the shirt over the piece of cardboard, as if you were dressing it.

Step 3:

FInd the design you want and trace, or draw, it. Make sure it is the size you want. Make sure the design is as dark as it can be. Fine details are hard to trace onto the shirt.

Put the paper copy of the design you want in between the shirt and the cardboard. Line it up exactly where you want it under the shirt and tape it down.

Step 4:

Trace the design onto the shirt in pencil.
Re-trace what is now on the shirt in a pen, or thin sharpie.
Fill in the areas

Any light lines will be hard to see and will require some free-handing.

Wash the shirt before you wear it, or else youll smell like the inside of a sharpie factory