Preheat oven to 350 degrees and line pan with cupcake liners. Green for a grass field look is used here, but you can use your team colors.
Combine cake mix, eggs, oil and milk and stir until smooth.
Fill cupcake liners 3/4 full and bake for 15-20 minutes.
FROSTINGS: Beat butter, vanilla extract and powdered sugar until smooth. Remove about 1/4 cup to keep as your "white" frosting for the football threads. Continue to add milk and cocoa powder for your "brown" football frosting.