I've seen two. Ironically I don't remember the last, or any of the actors names in either.
The first was a rendition of
Peter Shaffer's 'Eqquss' in Hobart in what must have been the early eighties. I remember there was a very well endowed blonde girl who got naked at one stage. I sat there taking flashless B&W photos, much to the chagrin of my girlfriend, who sat beside me. My girlfriend was a photography student
The latter was a strange one. Think it had an Italian title. I remember it was described in advertising and the press as 'shocking'. This was in the early 'Naughties" in Melbourne.
It involved total nudity and simulated? sex acts. At one stage they even asked for participants from the audience, one of which was an attractive woman.
Whether she was 'planted' in the audience or not, I don't know?
Later they had a question and answer session.
I remember one of the first questions being, "Why has that guy got a fake penis?"
I've only seen a few other conventional plays. I find it altogether an interesting medium, even the mainstream 'ish' ones.