Make eggs 1 day in advance. Make balls, 1/2 in. dia. from Candy Clay. Shape into eggs. Let set, about 2 to 3 hours.
To make each color of paint for speckles, mix 1 teaspoon lemon extract with a few drops of white-white icing color. Tint mixtures rose, blue and yellow. Place eggs on parchment paper. Use brush to dip into mixtures, then tap brush handle against your hand to splatter color onto eggs. Let eggs dry, about 2 to 3 hours.