Loot Crate is currently doing a series of Firefly crates that feature a QMx mini master figure of a Firefly character, with items that relate to that character. From what I can tell from the last two, all the items are from QMx, which means they're pretty good quality stuff.
The crates go for about 35$, and I just got the second one being Jayne. I was stupid, and didn't get the first Kaylee crate, which I regret since she'll be missing now. I really hope either QMx or Loot Crate will make it available at some point.
Everything in the crate, minus the T-Shirt that I am wearing.
Link to an album showing everything.