I'm sure its happened before, but I would imagine its very very rare. Schools have to have an incentive to give scholarships to people and there is no reason for them to give a scholarship to somebody who they're pretty much positive is going to end up going there. That said, admissions is usually pretty nice at most schools. Call them and ask, say just what you said here....You're really pumped to be going to school there but you were also wondering if maybe they had some funds available to offer you a small scholarship, or something along those lines. I'm not guaranteeing it will work but there is no reason not to.