Enter eShakti. My mother emailed me a link to them. You can buy a dress there and customize the sleeve length, the neckline, and the skirt length. You can also input your custom measurements and they will make the dress to your measurements. I picked one of their cheaper dresses to try it out. I'm sold.
Inside the bodice, all the seams are neatly finished. Is this high couture? No, definitely not. But it looks solid and dependable and there are some very nice touches. I tend to shop at places like Kohl's and Target, and eShakti is definitely a step up the food chain without a huge jump in price (wait for a sale!).
I really recommend eShakti to people who are oddly shaped or who want dresses that are a little more modest. I don't want to spam people, especially not in a post about encouraging each other in church clothes, but I am an affiliate. So if you click through using the link in my sidebar, I get a percentage of each order.
Since I am usually cold, I also left my pink coat on all through Mass. My chapel veil didn't make it into the picture either, but it's your standard black triangle.