The main reason behind sponsorship is whatever the sponsor will get out of it, it could be in form of awareness (advert), increase in sale,or the so called corporate social responsibility (image laundering). What, tell me do you think sponsors might get out of footing the bill for your wedding ?Apart from praying for you to win a promo I think you should cut your coat according to your cloth, tying the nuptial knot does not have to be elaborate, you can go to the registry and have a small reception for a few friends and family afterwards.Good luck.