Hi,
If you want to sell them directly online, you will need credit card processing or paypal, which is kind of expensive. Otherwise you can have a website that is just informative. However, if you give me some more information about your bricks project (what are they made of, are they baked, etc), I might be interested in buying them myself. OK, maybe this is not feasible, because I'm very far away, but let's talk about it ;-)