Bake cupcakes as directed on the box.
Frost the cupcakes as desired.
To add the chocolate pieces on the top of the cupcakes I used chocolates melts. Melt the chocolate in the microwave and spread the melted chocolate on a silicone mat. If you don't have a silicone mat use a cookie sheet and cover with parchment paper. While still warm, add any color sprinkles you desire. Let the chocolate harden, break into pieces and add to the top of the cupcakes for decorations.