What about a birthday cake in the middle with green icing and candles and balloon on both sides or a big applique "10" on one side. Whatever you do be sure and share pictures with us. If you just used the cake and balloons then you could use it as a runner or banner for family birthdays. Ideas are popping in my head. You could do "Happy Birthday" in the center with balloons and or cake/cupcakes on the sides.