A popular theme that works well for either a boy or a girl is a clown or other circus_related cake. They are usually very bright and colorful, which makes for instant attraction and a great focal point for a party table.
Milestone Birthday Cake Ideas _ If you're celebrating a special or milestone birthday, then you could make a cake in the shape of the age like a number 1, 16, 30, 50, 100, etc. Depending upon how many guests you plan on serving will help dictate the ultimate size of your age cake. Although this is a great idea, this type of cake isn't something that you would want to create year after year. It's best kept in reserve for a very special age.