I usually seek out event ideas which are unique and out of the box. I find that Youtube is certainly a terrific source for these types of tips. All you have to do is go to Youtube and do a search for "party ideas" and you will see hours and hours worth of video clips with countless awesome points. The trouble is, who has time to watch them all? So I am on a regular mission to collect some details so as to save me and also hopefully other people some time.
Here is an awesome video with some crazy party ideas - https://www.youtube.com/watch?v=wUlJSgYGmFw
Hope you find some good tips for your next party on Youtube!