Dr. Seuss Green Eggs and Ham Cupcakes

I love Dr. Seuss. I don't know where my love came from but I have had a little obsession with him lately. So being his Birthday today I have been finding a lot of fun things in honor of him. When I came across the cupcakes, I had to add them here so I can make them and keep them forever. The fact that its sugar and non the less, another cupcake, of coarse I had to keep it!
Found at Kara's Cupcakes

KEY LIME CUPCAKES
1 cup all purpose flour
3/4 cup self-rising flour
1/2 cup (1 stick) unsalted butter, room temperature
1 1/4 cup sugar
2 large eggs
2 1/2 tablespoons fresh lime juice
1 tablespoon finely grated lime peel
1/4 teaspoon neon-green food coloring
3/4 cup buttermilk

FROSTING
1 8-ounce package cream cheese, room temperature
1 1/2 cups powdered sugar
1/2 cup (1 stick) unsalted butter, room temperature
1 tablespoon finely grated lime peel
1/2 teaspoon vanilla extract

Preparation

CUPCAKES

Preheat oven to 350°F. Line standard muffin pan with 12 paper liners. Whisk both flours in medium bowl. Beat butter in large bowl until smooth. Add sugar; beat to blend. Beat in eggs 1 at a time, then next 3 ingredients (batter may look curdled). Beat in flour mixture in 3 additions alternately with buttermilk in 2 additions. Spoon scant 1/3 cup batter into each liner.
Bake cupcakes until tester inserted into center comes out clean, 20 to 25 minutes. Cool 10 minutes. Remove from pan; cool.

FROSTING
Beat all ingredients in medium bowl until smooth. Spread or pipe onto cupcakes.