NastyNate
I go kerplunk
Could you double it? The problem is that if you want it a good size on the shirt and the resolution isn't high enough, it comes out pixelated and blocky. Better too much than not enough.
You can use vectormagic.com to turn it into a vector image which can be resized into anything you want. Unless he has it as vector art.
Exactly. A vector image will never pixelate, that's what you need. Would need a program like corel draw or photo shop to open it though.