If you are planning a wedding and have a limited budget to work with, you might want to consider Walmart Bakery at Walmart Supercenters for your cake. I have checked out their bakery for birthday cakes and other special occasion cakes, and I was very surprised to see what a great selection they have. I personally have not gotten a wedding cake from them, but I have gotten other types of cakes, and they were always done very nicely and tasted great. Plus, I have checked out some of their wedding cake designs, since my husband and I are in the wedding business (photography) and their cakes were beautiful.
I know Walmart might not be the first place you would consider when choosing a wedding cake, but you might be pleasantly surprised at how good of a job they can do for you. Their cakes are more reasonably priced, and they can custom make a cake to your specifications. The only drawback would be delivery. I don't know if they deliver, but if you have a way of transporting your cake from the bakery to the reception, that drawback would be taken care of.
Walmart has an assortment of flavors for the cake, icing and decorations. I have always been pleased with any cakes I have purchased from them, and twice I received a birthday cake that was purchased at Walmart by my husband, and they were very pleasing to the eye as well as the taste buds.
For any special occasion (including weddings), I think the full-service bakery at Walmart Supercenter would be a good choice, especially for limited budgets.