Mix first box of pound cake with 2/3 cup of milk, 2 eggs and ¼ cup of butter. Add about a teaspoon of red food coloring. Add more if you want a bright red, less if you want pink.
Pour batter into a 9×5 loaf pan and bake for 42 minutes (should be slightly under cooked).
Allow to cool and remove from pan. Cut slices the thickness of the cookie cutter; use cookie cutter to cut the shape out of each slice.
Line loaf pan with parchment paper and line the Mickeys up in a row. (Note: pour a little bit of batter in the bottom and set the Mickeys on top of the batter. He will be more in the middle of the loaf instead of at the bottom.)
Mix second box of pound cake with 2 eggs, 2/3 cup of milk and ¼ cup of butter and gently pour over the top. Using a spatula, evenly distribute batter over the pieces.
Bake for 45-47 minutes.
Allow to cool completely and remove from pan.
Mix frosting by whipping powdered sugar, butter and vanilla. Slowly add milk (up to 1/3 cup) until you reach the desired pouring consistency.
Set the cake on top of a cooling rack and gently pour frosting over top. Add a generous amount of sprinkles.