Kit kat cake of boxed chocolates.
Large chocolate cake with chocolate fingers around the outside and sweets covering the top. Next birthday sorted!
Nice subtle party feel in the background
Fourth of July Crafts for Kids: Flour Lawn Stars. Cut out star stencil, sprinkle grass with water (to make the flour stick) and then sprinkle with flour. This idea also works for Canada's July Birthday. Just substitute the star for a Maple Leaf.