Yes, I saw these on pinterest. I modified these by using cake mixes. Here is how I made them.
Start out with: 1 white cake mix, 1 chocolate cake mix, crushed candy canes, chocolate mint chips, peppermint extract and instant coffee.
1. Mix up the white cake mix according to the box. Add 1 tsp. peppermint extract and some crushed candy canes. Set aside. It will be pink.
2. Mix up the chocolate cake mix according to the directions add 1 tsp. instant coffee to the water. Coffee enhances the flavor of Chocolate. Stir in 1/2 the bag of the mint chips.
3. Fill the cupcake liners with 1/2 pink and 1/2 chocolate mixture. Do not stir together. Bake according to the directions.
Mix up marshmallow frosting. Here is how I did it. Recipe from: http://www.chow.com/recipes/30784-marshmallow-frosting
Start with 8 egg whites