Okay, so the new update came out, and boy oh boy how the economy exploded! Fall crates contain brand-spanking-new items, including pocket animals, new hats, and a whole bunch of goodies!
Fall crate keys cost 2.49 in the mann co store, and are sold at about 2 keys each (sold mine for a key + pink clean warsworn helmet). I don't have the list yet, but I did find a koala for the sniper and a kitty cat for the engi!
The war pig is a very sexy hat probably going to be worth a lot my friend sold his for 4 keys.