I typically seek out event tips that are unconventional and out of the box. I find that Youtube is undoubtedly a terrific source of these kinds of tips. All you will have to do is check out Youtube and perform a search for "event tips" and you are going to see several hours worth of clips with many different outstanding advices. The issue is, who exactly has enough time to see them all? Thus I am on a regular quest to compile some notes in order to save me and hopefully other people some time.
Here is a great video with some insane party ideas - https://www.youtube.com/watch?v=wUlJSgYGmFw
I hope you find a few good ideas for your future party on Youtube!