Sweet Sixteen Birthday Party Ideas?

I know it's a few months away but I'm trying to think of a few ideas for a sweet sixteen party. I live in Alberta, Canada. My birthday is in April, so there will probably still be snow on the ground. Therefore an outdoor party isn't really an option.

I'd like to have a party where I do some sort of activity such a scavenger hunt at the mall, and then go home and watch The Notebook with my friends. Any ideas to expand on this? Money isn't a problem.

By Susan U