What are some good fundraising ideas for high school students?

I am in this environmental club at my school. We are constantly trying to raise money for our club for gardens and things like that. This year we did tshirt sells and we held our second film festival. We want to try something different for next year. We were thinking about doing a dance? We are still not sure. Any ideas of what we can sell or type of event we can do??? Remember this is for high school students and we need something that they will be interested in doing!! The film festival was a bit of a fail so we really want something that ppl will want to come to and be entertained when they do come! Another club already has a talent show so we cant do that. Please & thank you!! :)