I frequently seek out party ideas that are unusual and out of the box. I find that Youtube is without a doubt a good source for such ideas. All you will have to do is go to Youtube and perform a search for "party suggestions" and you are going to see hours and hours worth of video recordings with a large number of fantastic advices. The issue is, who has time to see them all? Thus I am on a constant quest to put together some notes to save me and hopefully others some time.
Here is an awesome video with some crazy party ideas - https://www.youtube.com/watch?v=wUlJSgYGmFw
Hope you find some good ideas for your next celebration on Youtube!