Grad Project Ideas

To be quite honest, i have no idea what i want to do for my grad project. I have talked to people who have completed a grad project and graduated, and made the whole thing much more clear. However, i still don't know what i want to do. I have, however, had a few ideas, such as building a computer from scratch, and doing an online gaming guild, and maintaining it. I have also thought about doing something about the affects of energy drinks. That's all i have come up with so far, but im sure ill think of something.