How to ask for sponsorship to run for Sate Fair Queen?

I was curious as to how and whom I could ask for sponsorship to run for State Fair Queen this year as my first year running. Sponsorship would include tack, money, etc. I've just never really had to find sponsorship before, but obviously will need to. Any answers, tips, and/or advice would be greatly appreciated and I'd be more than grateful. Thanks a ton!