Crowdsourcing the topic for my database project

For my class, Foundations of Database Systems, our final project is to develop a relational database with a user interface. I think I'm going to use Python and MySQL, because I'm familiar with both of them and I like them.

I have a couple of vague, half-baked ideas, but none of them are really exciting to me. I thought I'd take advantage of the collective intelligence of Hacker News to see if anyone has any cool propositions. Ideally, we'd be able to use the database to answer some interesting question, or see an awesome result.

Accepting any and all ideas!

I'll of course make all the code available and cite all my sources and references. Also, when it's finished, I'll post the results to HN to people can see the project and leave comments.

Thanks!