An easy, yet very elegant way to decorate macaron shells is with a drizzle of chocolate.All you'll need to do is melt your favorite type of chocolate, then drizzle it on top of the macaron shells using a spoon or piping bag.
If you're a sprinkle lover, this easy decoration idea is for you. Try adding sprinkles to your macarons after you've piped the batter and released the air bubbles. You can use a variety of sprinkles for different looks.
If you're a candy lover or you're making candy-inspired macarons, consider using finely chopped candies as a macaron topping. You can dip the finished macaron shells in chocolate, then into the finely chopped candy bar.
If you're making macarons with a spice-forward flavor, consider garnishing them with an additional sprinkle of spice. You can dust either the macaron shell or the filling for an easy decoration and flavor enhancer.