Help 4 My Summertime Sweet Sixteen

Hi, my name is Jazzsi. My sixteenth birthday will be in June, and I want to have a crazy co -ed party around 80 people that everyone will remember. I have a theme it’s Midnight Luau but I don’t have activities and but I need ideas of what else to do. I`m planning on having it in my hall or mansion. If you have any more suggestions for me contact me at miss_thang0619@yahoo.com as to what we can do? Oh I am on a budget. Thanks.