Financial talk

I'm involved with fundraising for a youth organization, and we are trying to raise money for a conference this summer. The amount of money we are responsible for raising is substantial, so I was wondering if anyone had some ideas (preferably ones that you have seen work) to help us reach our goals. We are sending out sponsorship letters to businesses (and they'll be getting their tax refunds), but we need more ideas. Thank you so much for your help, we all really appreciate it! P.S. Most of those actually doing the fundraising will be ages 10-20. We have all that down. What we really need now are actions we can take to bring in the needed funds. That last one was to Club = )