Having officiated player events in the past(weddings, barmitzvahs, and one time Notorious Monster that dropped a pot of glue.") I rather like this "build your own room/event" thing. You figure all the devs would have to do is adapt the Mog House from FFXI into a bigger area. This in turn could be set up into a myriad of things, and if bells, fireworks, and confetti just so happen to make it in the game, oh well.