Place the Creme de Menthe and Creme de Cocoa into a small mixing bowl. Stir until completely combined.
Using a large decorating tip, make a hole in the top of each cupcake, saving the remnants from each hole for use filling the hole in a moment.
Place 1-2 teaspoons of the Creme mixture in each cupcake hole.
Replace the top of each cupcake hole.
Add mint extract to the frosting and stir until completely combined.
Go ahead and sloppily add some of the uncolored frosting to your decorator's bag.
Mix 5-10 drops of green food coloring with the frosting and stir until the frosting is completely consistently minty green throughout.
Then fill the decorating bag with the green frosting.
Frost the cupcakes in a circular fashion, swirling from the inside to the outside then back toward the inside.
Enjoy!