Christmas Rainbow Cake

1 box white cake mix (plus ingredients to make cake)
1 can white frosting
red food coloring
green food coloring
sprinkles

Mix cake mix according to directions.
Divide batter in half.
Put one half into a bowl.
Divide the rest of the batter in half again, and put in two more bowls. Add green food coloring to one. Add red food coloring to the other.
Prepare a Bundt pan (grease and flour).
Pour white cake batter into pan.
Pour half the red batter into pan.
Pour green batter into pan.
Pour rest of the red batter into pan.
Bake according to directions on cake box.

Once cake is cool, divide frosting into two bowls.
Microwave white frosting 5 to 10 seconds and drizzle on cake.
Microwave rest of frosting and add green food coloring. Drizzle on cake.
Cover with sprinkles.