I've got a roleplay idea rolling around in my head that involves a cruise ship that was out at sea when the bombs fell and survival on the ship after the war. I've got a few ideas to implement after this happens, the ship running aground on the coast after drifting at sea, survival in a resource scarce areal, and the general happenings in a situation like this. I think it'll be kind of a mix between Fallout and the movie Poseidon, although less sinking and more flooding.
I'd like to get someone else to help me run this as Co-Gm and if there's enough interest I'll plan more out and get that up either tonight or tomorrow.