Mix the cocoa with the icing to make chocolate icing.
Spread the icing onto the cupcakes.
Place 2 mint slices onto each of the cupcakes.
Put a chocolate button on each of the mint slices.
Cut 3 mint slices in half and put them at the back of the cupcakes to make them look like ears.
Using a piping bag, evenly pipe icing between the ears and the eyes.
Add m&m's on the white chocolate buttons to make the eyes. You can use other lollies instead if you wish to.
This is how they should turn out. Enjoy! Yum yum yum!