HELP!! Where can I find wedding shoes for my big feet?

I'm having a bit of a problem finding my wedding shoes. I wear a size 11-12 and everywhere I have looked hasn't provided the results I am looking for. I have checked Lane Bryant, Torrid and the Avenue: nothing. I have ordered three different pairs from DSW, they were all too small. I ordered a pair from Pink (size 12) and even those are a little snug. I am starting to panic here. The problem is I have to wear flats because my fiance and I are the same height, and I want shoes with style not just simple white ballerina flats. If any of you have larger feet and have had any luck please help. If you don't have larger feet and you have a good idea, your input is appreciated too. If it helps I live in Southern California, but I am not opposed to ordering online either. Thank you!