Design an Advertising Flyer

I have a small simple product that I want to get into schools - so the design will need to be targeted towards parents with children. This is a low priced product with great benefits to school kids - really targeting girls with long hair. It may also extend to sports associations and older women - right now I want to get in via the Parents and Teachers Associations as a fund raising idea with 50% of the proceeds from sales going back to the School. The product is readily available in the marketplace - I just want to squeeze into a niche area - You can imagine it is a comb (if that makes it easier) for the product. Should be a DL type of flyer / card, simple, able to explain the benefits to the Parent, and the School.