In a large pot, melt 3 tablespoons of butter over low heat, stirring gently for about 1-2 minutes until it becomes bubbly. Add 6 cups of mini marshmallows, stirring continuously until they are completely melted and smooth.

Remove the pot from heat and fold in 8 cups of Rice Krispies cereal with a spatula. Ensure the cereal is well-coated in the marshmallow mixture.

While the mixture is still warm, pour it into a greased egg-shaped mold or shape them into oval forms. Allow the treats to cool at room temperature for approximately 30 minutes.

Once cooled, drizzle pastel icing carefully over the treats using a piping bag or spoon.

Sprinkle colorful decorations generously over the icing while it’s still wet, then let them sit for another 10-15 minutes to set.