Do you have many friends on Facebook you should be grateful for it, because then you could have been much easier to sell or bussines product about you. Occasionally it may be sharing about selling your T-Shirt, and because your friend is very possible there are many who are interested in purchasing a T-Shirt and you sell it? With Facebook you will benefit a broad promotion
You can share directly in the Wall besides can also create a similar group on Facebook, and your friends who have the same interests can join the facebook group that you make. Try to Make it as a group on facebook with the name: T-shirt Lovers (just example), Make the most interesting name you think.
