Sure the NY Renaissance Fair is pretty well known. It's huge and it happens in southern New York every year. But actual Faerie festivals around New York? They're real and they happen.
I have never heard of anything like this before, aside from people talking about "RennFair" season (I think that's how the slang is spelled...
What happens when a Rock Girl takes on the 'cosplay' trend? While I admittedly live for dressing up, Halloween, costumes, and gory make-up, I know nothing about cosplay. I've been to one comic-con, where I crashed the costume contest (dressed as Wednesday Addams)...