There is a much simpler way for bakery's now and in the future to deal with the whole government censuring  issue. As a bakery you simply offer a limited portfolio of designed wedding cakes. No custom design wedding cakes beyond offering options only on the icing and favor of batter. Have set designs A, B, C, and D for heterosexual couples and A, B, C, and D for homosexual couples. If one were using their creativity I would believe same sex couples would take one look at the options and say to themselves no thanks. There is more then one way to rein in a rogue government.