Here are some creative cake decoration ideas for a kids' birthday: Fondant figures: Create cute figures like animals, characters from movies, or cartoon characters from rolled fondant. Candy toppings: Top the cake with colorful candies, lollipops, and gumdrops. Fruit arrangements: Arrange slices of fruit like strawberries, kiwis, and melons on the cake for a healthy and colorful touch. Sprinkles: Sprinkle nonpareils, jimmies, and sprinkles in various colors on the cake for a fun and playful look. Cake toppers: Use cake toppers like plastic figures, characters, or toys to decorate the cake. Buttercream swirls: Pipe buttercream swirls on the cake in bright colors for a whimsical touch. Edible images: Print a photo or image onto an edible sheet and place it on the cake. Chocolate decor: Use melted chocolate to create borders, drips, or writing on the cake. Sugar paste flowers: Create sugar paste flowers like roses, daisies, or poppies and place them on the cake for a beautiful touch. Note: Always keep in mind the child's favorite colors, themes, and interests when choosing cake decorations for a kids' birthday.