Specialty wedding cakes can range anywhere from $5-$25 per slice and up. Depending on the flavors, materials, and handmade details in your cake, you could be facing a pretty large bill. If you're on a tight budget, cut down on the cake. If the specialty cake look is what you are going for, have a smaller dream cake made. It'll be much cheaper to do a very detailed cake for 50 people and have sheet cake reserved for the guests than a detailed wedding cake for 250 people. People will never know the difference!