I've dressed up as a million things for Halloween, but my favourite 'costume' was the wardrobe for Unknown Mortal Orchestra's Ffunny Frends video, which was actually a couple of months ago and the director helped me sift through my piles of clothing. I didn't dress up on Halloween day, so one costume is as good as any, I suppose.
I think the consensus of this outfit is Lady Gaga on a mushroom trip, and probably the reason I'm into the fur+sequin combo so much the a/w (I lovelovelove all the different textures of this outfit). You should check out the video. It's pretty cool. I might just be saying that because I'm in it, but find out for yourself;