To no one's surprise, the sweet popcorn recipes were by far the favorite, but there were some other good ones, too! None of these take more than 40 minutes to throw together (including curing time for the caramel corn), although there's some that require time to set up and/or cool. The cinnamon one was my favorite.
Italian Breadstick Popcorn
Chili Lime Popcorn
Salted Chocolate Caramel Popcorn
Cinnamon Bun Popcorn