One can get a specialized birthday cakes at your local bakery. Most cities and towns now have stores where bakers can make and decorate any kind of cake you desire.
Most bakeries will make you one if you ask. Royal cakes will make specialty cakes.
One can find ideas for kids birthday cakes that are egg and gluten free from sites like food network, all recipes, all taste, and many more. One can also find it from cook books or from recipe shows.
A baker is what you call someone who makes cakes. and Patisserie is the one who specialized in pastries and sweets.
You can find halal birthday cakes at specialty bakeries that offer halal options, or you can order one online from a halal-certified bakery. Be sure to specify your dietary requirements when placing your order.
You can find cake designs for you to make on Pinterest. You can also choose a cake design and have one made for you in a bakery, or a grocery store that sells cakes.
Many large supermarkets and ice cream shops have basic cakes that you can buy. Then you can personalize it with a name, some designs (like icing flowers), candles, sprinkles, and so on. Some ice cream shops may allow you to design your own cake. Otherwise, most bakeries will allow a person to create their own custom cake. Usually, it if from some designs or ides that the bakery has (like cake flavors, shapes, icing flavors, ect.).
You can find a Thomas and Friends birthday cake at most bakeries or delis that also specializes in birthday cakes. If they don't have one premade, many places with make a cake for you just the way you want it.
I've never seen one in Washington or Idaho
Pinkcakeland.co.uk delivery in London and south England
Many bakeries and grocery stores display photos of cakes they can make in their stores and online. Pinterest and Cake Picture Gallery are other sources of birthday cake pictures.
Stores like Indycakes and Punchbowl offer great variety of cakes such as princes birthday cakes. The prices are very reasonable and you can book your order online as well.
If you are planning on baking a special birthday cake for someone you should browse for ideas in magazines and cookbooks. Better Home and Garden and Martha Stewart Living are some examples of magazines that would have some delicious and creative recipes. If you are hoping to find something online, look at the baking specialist Wilton's website. If you have a very specifically themed idea, taking a look on Pinterest might help spark your imagination.