Lemons are a great substitute for limes. However if you want the bouquet to
look good for more than one day do not use oranges, apples or any other
fruit.
You can have your guest guess the number of lime slices and the closest one
wins the bouquet.
Instead of using fresh fruit you can substitute candy. However once you have
placed all the candy needed between the liner and vase use clear tape and
completely tape the rim of the the liner to the rim of the vase. You do not
want any water to dribble into the candy. Carefully pour water only into the
liner and then begin arranging your flowers.