Project Idea - Intro Statistics Class

I'm a freshman in college now and I'm taking an intro statistics course. We have a final project for this class, and we need to decide on our own topic. Also, we must collect the data ourselves and cannot use published data(such as stock prices, etc.) Could anyone give me some interesting ideas?

I thought I could analyze Facebook usage patterns(time periods when students are most active, demographics) based on user comments on my posts, but I'm not sure if I can collect enough good data.

I'd be very very grateful for any ideas. Thank you very much!