Thanks for asking. You can offer things for sale in the Wanted/For Sale area. We typically ask that they be original and not ripping off something that was already sold (like your reproduction of a tour shirt).
If it has for example Tim's picture, we'd want you to be clear that money from the sale goes to you and not him. In a truly straightforward legal world, you wouldn't use pictures and things that you don't have written permission to use... But I know "fans make things."
You can private message me for more info or to show this item to me.