I commonly hunt for event ideas which are out of the ordinary and out of the box. I think that Youtube is truly a terrific resource of this sort of tips. All you need to do is browse through Youtube and do a search for "birthday party tips" and you will see many hours worth of online videos with many different fabulous points. The issue is, who has enough time to see them all? Thus I am on a constant quest to collect some notes to save me and perhaps other people some time.
Here is an awesome video with some crazy party ideas - https://www.youtube.com/watch?v=wUlJSgYGmFw
Hope you see a few great ideas for your next celebration on Youtube!