Sweet Sixteen

Hey
I am going to be sixteen on november 5th and I have no clue on what to do for my birthday. A budget really does not exist for me the only problem is that I live in Maine. The other problem is that it is to cold to do anything outside but it is also not cold enough for anything that would involve snow or ice. So if you have any idea on what I could do for my party it would be greatly appreciated. Also there will be a lot of people there so it has to accomodate a large crowd.
Thanks again.