Looking for buyers

Hello out there I'm trying to find buyers, I'm a graphic design designing artwork for clothes such as t-shirts, sweatshirts etc. I have a manufacture that is looking at my work and they are ready to start printing but I need a buyer from some of these big chain department stores such as Macy's, wal-mart etc. Can someone help me in my venture? If so I look forward to hearing back from you guys and thank you for your time.

Inaam