How can a teen boy make money online?:

How can a teen boy make money online?

I am a teenage straight A’s male high school student. I home school so I have a lot of free time. I am interested in professional sports (particularly baseball) and am good with graphic and website design. I am trying to figure out how to make money online, but I want to do something more interesting than filling out surveys or clicking ads. How can I make money online with these skills and interests? Is there a way to make money buying and selling on eBay (possibly sports memorabilia)?