I routinely hunt for party approaches which are unique and out of the box. I think that Youtube is without a doubt a good source for such tips. All you will have to do is check out Youtube and do a search for "party tips" and you are going to find many hours worth of videos clips with various fantastic suggestions. The problem is, who has the time to watch them all? So I am on a regular quest to gather some notes so as to save me and also perhaps others some time.
Here is a great video with some crazy party ideas - https://www.youtube.com/watch?v=wUlJSgYGmFw
I hope you find a few great ideas for your future party on Youtube!