I normally look out for party approaches which are unconventional and out of the box. I think that Youtube is usually a good source for these types of ideas. All you have to do is check out Youtube and do a search for "event ideas" and you will find hours worth of movies with a large number of exceptional advices. The trouble is, who has the time to view them all? Thus I am on a constant mission to collect some notes so as to save me and hopefully others some time.
Here is a great video with some insane party ideas - https://www.youtube.com/watch?v=wUlJSgYGmFw
Hope you find several good ideas for your next event on Youtube!