Wow, thanks for all the votes, gang! If I had been able to cast a vote myself, it probably would have gone to BorgMan
for working up such a cool design so quickly, but everyone's work was exemplary as always. I also have to second Ptrope's
observation that all of these could have fit together quite easily as a single concept. Thanks to Admiral2
for the great inspiration.
I already have an idea in mind for the next contest and will post a thread for it later today.