Sew Geek Austin is an awesome little company that makes AMAZING Supernatural apparel, jewelry, prop replicas, and basically anything your little Supernatural fandom heart could desire. I stumbled upon it when the Supernatural addiction first seeped into my blood. Claudia and her daughter Anika have a knack for making the most AWESOME geekery you can imagine.
Although they also have some Doctor Who, and even some Arrow products, the site primarily features Supernatural, which up until very recently has been lacking in the cool merchandise department.
But my very fave right now is the Limited edition Always Keep Fighting Ornament, because everyone could use a little reminder to keep fighting.