Hey I need some good ideas...?

A couple of years ago I went to an audition for an IMTA convention (modeling and acting) and i was highly accepted to go. Ever since then I havn't been able to get any money to go and it costs a lot of money! My parents can't pay for me to go and honestly I don't want them to, because if this is something i want, i think I should try myself. I was too young then to get a job and i'm still a little too young (15) but I can't find a job. I'm thinking about doing some kind of fundraising but I need some good ideas. anyone? help?