I need to check my in-game calendar more often. Kady told me about the Trial of Style event and oh man! You queue for a scenario at a transmog dude, then go in with several other people. You are given a category and dress up for it.
I had the worst time getting 1st place as leather, but cloth was easiest.
Overall a fun cute event, even if most people have absolutely no taste in clothing, at all. During one scenario three people queued up totally naked, and two of them won that way. Lame.