I oftentimes want event tips that are unconventional and out of the box. I think that Youtube is normally a wonderful resource of these tips. All you will have to do is check out Youtube and perform a search for "party ideas" and you are going to see hours and hours worth of movies with lots of very good tips. The issue is, who has the amount of time to watch them all? Thus I am on a regular mission to collect some details in order to save me and perhaps other people some time.
Here is a great video with some crazy party ideas - https://www.youtube.com/watch?v=wUlJSgYGmFw
I hope you see a number of good ideas for your upcoming celebration on Youtube!