african-american representational art for under $100?

My nephew's birthday is May 8, and I'm looking for some art for him. Something I can afford. He's very interested in having representational images of African Americans--he's half-Iranian and their home is filled with Persian art and artifacts, but no African American ones, and he'd like to rectify it, at least his space. I never buy art, so I'm not sure where to look in this price range.

If anyone has any ideas, please E-mail me. If it's your own art, even better!