@henlus: Nice concept! I don't really have an opinion about it since I didn't know what a linear motor was until after your post but this definitely goes in the 'cool' or the wow-factor kind of ideas I'm looking for; lots of nice applications one can think of.
@xxChrisxx: Hmm... Thanks for the very good advice again. I'm just starting junior year in a few days so I haven't really developed very strong likes and dislikes. However, I will say this much: I hate pure analysis projects like an FEM analysis of something or an energy management analysis of some industry. I don't like economically oriented projects though I do realize economics will have to be taken into account for any proper project. I like theory a lot and like the mathematical content of theory even more. I can't really say which subjects I like since I have studied only a few by now but I like those that I have done: statics, dynamics, mechanics of solids and thermodynamics.
And I think you are misunderstanding what I'm asking for here. I'm not asking for crazy ideas. I don't know what kind of projects you see where you go, but, in our uni all that people do is make some optimized and nicely engineered heat exchangers or turbines or they do some complicated CFD or FEM analysis or (the worst) they do an energy audit of some industry. It never feels like "hey, it would have been fun to do that project", while all other departments make a lot of cool stuff including UAVs, wireless electricity transmitters, and last time they even made a thought controlled mouse pointer controller (I know the basic concept is pretty simple using EEG, but, still, we were in awe until we found out how they did it :D).