Seattle, here. And in a heartbeat, yes!!
I sometimes go to underwear night at CC's.
I posted about Superhero Spandex theme night at CC's monthly fetish night here on the Spandex Party events page (
link), but it got little engagement. I went, and though the place was packed, there were like 8 of us in spandex, with the rest in harnesses, and some in rubber. I was pretty disappointed. :(
I'm told by my friends who organise nude nights that it's pretty easy to ask CC's to have a small area reserved for a specific theme. I'll make an enquiry.