Preheat your oven to 350° and line a cupcake pan with cupcake liners.
In a large mixing bowl, combine your cake mix, oil, eggs and water and mix using a hand or stand mixer.
Fill your cupcake liners up 3/4 the way full with cake batter and then bake for 15 minutes.
Let your cupcakes cool.
Place a large star decorating tip in a decorating bag and then fill up with frosting.
Then frost each cupcake starting in the center and working your way to the outside.
Place a large and small candy eye onto the center of each cupcake and a candy corn marshmallow upside down underneath eyes.
Now fan out about 5 candy corn marshmallows above the eyes around the top of the cupcakes.