As far as I know, some fans created a Vulcan language (or at least part of it) from the few things seen and heard on the shows and movies. There are some sites on the net about it. I'm not sure whether anyone could really converse in it. Maybe T-Laina
can expand on that.
But whatever you may think about the language or the project it's quite impolite to spam up someone else's thread, especially if they're still new to the board.