I often want event approaches that are out of the ordinary and out of the box. I find that Youtube is a wonderful source of this kind of tips. All you will have to do is browse through Youtube and do a search for "party ideas" and you will see several hours worth of clips with various exceptional ideas. The problem is, who has time to watch them all? So I am on a regular mission to put together some details in order to save me and also hopefully other people some time.
Here is an awesome video with some insane party ideas - https://www.youtube.com/watch?v=wUlJSgYGmFw
I hope you find a number of great tips for your future gathering on Youtube!