Freeze seedless grapes and berries and use them instead of ice cubes in cool drinks. Nothing is more refreshing than a cold drink served in a frosted glass. Keep a few glasses in the freezer so they'll be ready when you want to serve an icy drink. Make simple drinks more elegant by lining the rim of the glass with sugar. Just dip the rim in water and then into a plate of sugar.
Colored sugar looks particularly festive.
Red, white, and blue ice cubes are perfect for patriotic holidays. They are easy to make with berries and food coloring. Try a lemon sunrise. Mix up a batch of lemonade using carbonated water. Then pour it over ice cubes made by freezing watermelon puree.