I routinely look for event approaches which are unusual and out of the box. I find that Youtube is usually a terrific resource for these ideas. All you have to do is browse Youtube and do a search for "birthday party suggestions" and you will see many hours worth of video clips with lots of exceptional points. The trouble is, who exactly has the time to see them all? So I am on a constant mission to compile some details in order to save me and also hopefully other people some time.
Here is a great video with some crazy party ideas - https://www.youtube.com/watch?v=wUlJSgYGmFw
Hope you find a number of good ideas for your future occasion on Youtube!