In addition to decorating the wedding cake you will also need to plan your bridal shower and honeymoon. It is very common for some of the guests to bring in their own theme cake so you will need to have some idea of what you will be having for dessert. Having a design idea can help you not only to create the look that you want but it can also help determine the decorations you will need to incorporate into the design. For example, if you are going with a jungle theme then you may want to consider having edible foliage as well as decorations that resemble leaves.