I have used mini eggs as their outer candy shells, in various pastel shades, are very pretty. However, you could also use plain chocolate eggs, all one colour or a mixture of dark, milk or white chocolate. As well, you could use Crème Eggs, cutting some in half to reveal their soft cream centre which mimics an egg yolk.  If you want your dessert to be gluten-free, be sure to check that the eggs are also gluten-free.