So I was already feeling super jealous of all the pics of cool costumes at SDCC, and this one takes the cake. Teensy little Kaylee posing with Wash!
Hits me in the ovaries like a ton of bricks.
More pics of lil' Kaylee here.
[ETA: This was not actually taken at SDCC—as you can see from the pic it's from Supanova Sydney—but still relevant to my costume envy/admiration.]