Preheat the oven to 350 degrees.
Prepare the cake mix according to the box directions and stir in the 1 tablespoon of Christmas sprinkles.
Spray a 9x13 baking dish.
Pour in the cake mix and bake for 30-35 minutes until a toothpick inserted comes out clean.
Cool the cake for 20 minutes.
Meanwhile, make the jello.
In a medium mixing bowl combine 1 cup boiling water with cherry jello and stir until dissolved.
Whisk in ½ cup cold water to the cherry gelatin and set aside.
In a separate bowl repeat the above with the lime jello and set aside.
Using the end of a wooden spoon or a large straw poke holes all over the cake.
Spoon the jello in the holes, I like to alternate red in one hole, and green in another until they are all filled.
Refrigerate the cake covered for 3-4 hours to set.
Frost the cake with the whipped topping.
Decorate the cake with more sprinkles and Christmas peeps.
Serve!!