Or HBO and ESPN for a month. Or a free pager for a month. The key here is to advertise for the donating business while you are getting applications filled out. Businesses are always looking for ways to get cheap publicity. Advertise that proceeds benefit a local charity.
People are always willing to help out a charity.
Contact a local children s home, retirement home, food pantry, homeless shelter, etc. Give them 50 cents per application or so. Good publicity for your group too. IF they complete the application correctly. Reward the students for completing the application for you.