For interesting clothing, I currently have my kilt, a pair of sarong pants with flame designs and some light Balinese pants. I have figured out a couple of the things I'd like to add to that collection:
* A latex shirt or top of some kind. I got to try one on recently and I want one of my own.
* A "Howie" style lab-coat (as in the kind that Dr. Horrible wore). I haven't completely decided if I want to go with the white, the red or something different (heh, tie dye!)
* something with a round collar, like
this