I typically try to find event ideas which are unconventional and out of the box. I found that Youtube is without a doubt a great source for this kind of tips. All you will have to do is check out Youtube and do a search for "event suggestions" and you are going to find several hours worth of video clips with many excellent tips. The problem is, who has the amount of time to view them all? So I am on a regular mission to put together some details so as to save me and perhaps other people some time.
Here is an awesome video with some insane party ideas - https://www.youtube.com/watch?v=wUlJSgYGmFw
I hope you see a number of good tips for your upcoming party on Youtube!