I've been aware of the addition of item stands in the server. This led me to Think that there are many things you can do with Item stands. A thought of mine would be a Five Nights at Freddy's minigame.
I do think that is a good idea but I've seen players doing that sort of thing, having a Five Nights at Freddy's mini-game of their own, no plugins needed. I'm not even sure if there is a plugin for that yet but there shouldn't need to be one for you to enjoy the mini-game playing with others on the server. This, of course, is just my opinion unless you are getting at something else? Were you thinking an event (etc...)?