This has got to be the most exhaustive poll I have ever took part in - my compliments for that :-).
My options were mostly in the leisure and arts sphere. Camping was a no brainer for me. I would love to go on a naked camping trip sometime, find a place far away from everything and just submerge in the surroundings. That to me is what naturism is all about: getting in touch with nature, feel connected with it, with yourself ... It's unfortunate that I live in such a dense part of the world, it's virtually impossible to get away from society :). Skinny dipping or sauna would be good alternatives though. Or the bonnfire option - although the combination nudity-fire could be tricky.
For some reason a poker night seemed like such a natural association with nudity. And actually the nudity could detract attention from my awful poker face :).
A nude-stock kind of event is definately something I could see myself attending. I just associate festivals with freedom and total carelessness. The only thing you need to worry about is filling up your schedule and planning meals. And I don't think nudity would be such a stretch there. As far as music went I also checked pop dj sets and foam parties - though that'd a little bit more of a leap. I'm self-conscious enough about my dancing as it is :-D. Then again, as far as the foam party it would seem more comfortable to just strip of at the entrance and get dressed again afterward: I'd probably only use swimming trunks anyway.
Photography and life drawing are things I actually have some experience with, but not as a model. I'm not sure I'd be any good at it either. Maybe I should give life modelling a try sometime.
And finally I found debatting an interesting option. You'd really be putting yourself in a really vulnerable position. It makes me wonder if maybe the nudity would actually make me *more* confident :-). I definately wouldn't have time to be nervous about speaking in front of a crowd :p. I think a nude debate could be very interesting. Nothing to hide behind - litterally - I wonder how that would affect the way people debate.
Anyway, my two cents. Apologies for my incoherence :-).