Quote Originally Posted by munnin
Actually every team has an official NFL web site with and official online web store to sell merchandise. So I think once you convince the NFL to create the product the outlet is obvious. I am not sure what the manufacturer/vendor relationship is though. Different teams do have special products so I am not sure which products are created for the NFL and which are privately created at the request of the team.

One example would be the wide range of caps created by rebock which are all designed similarly just with different colors and logos. Another would be the terrible towel which is created specifically for the Steelers and few teams have a similar product.
while I agree, I'm not sure the NFL will buy off until you have shown proven sales of the product. I don't think they would sink any money into a product that has no hisotrical sales to project future profitability from. I'm sure each of the team specific items started somewhere as an idea that grew into something that the NFL found to be profitable, and purchased.