I wish you luck but you will have a hard time finding someone willing to put work into graphics for you on a promise of possible future earnings. You are going to need to spend some money in the beginning with a new business or find some free graphics or learn to create your own. If you search at this and other forums, you can probably find an inexpensive, just starting out designer. Usually they are willing to work cheaper in exchange for a reference or testimonial. Good luck with your business.