The Next 3D Battle - IDEAS

Hey guys,
Since a lot of people on the forum are looking forward to another 3d battle. How about shooting out some ideas, for something we all may settle on.
I have some ideas, just shoot yours out:

If anyone knows animation, how about a short quick animation of something? I’m getting into dynamics, so I think it’d be a fun idea.

Modeling a room of some place (ex. airport, apartment etc)

Or maybe a spaceship of some kind? Modeled and textured.