I've now added links for all the mid-semester projects, so you can read what your colleagues have written. I would especially call your attention to MOAB's mid-semester project. This is by far the nicest mid-semester project I've seen since running game theory. They study the NYSE/Euronext acquisition. Notice how they pin down 4 key bidding points in the negotiation based on the inside versus outside option equalization in second price auctions. Notice also the care in devising what these valuations are. They are facing a potentially super-complicated game, but used the tools of game theory to isolate and analyze the key aspects.
Check it out here.