I've already done that and I have no business, heh.You can out the link of your shop in your signature, like that, whenever you post somewhere on the forum, people will see your link. :3
Just be patient. You will get people to come to your shop.
I'm talking in-game furniture. And I'm not telling you to open a store where you order furniture series from catalog to sell, I'm trying to tell you that a shop that sells patterns won't sell well. Competition is the issue. You can make high-quality patterns, but some can make high-quality patterns at a lower price (or at no price at all). I'm just suggesting that you should have a different commodity.