Jello American Flag Cake

Pre-heat the oven to 350° F, and grease the bottom only of a 9x13 cake pan.
In a large bowl, mix together the cake mix, water, canola oil, and eggs on medium speed for 2 minutes.
Pour the cake batter into the prepared cake pan.
Bake at 350° F for 24-29 minutes, or until a toothpick inserted in the center comes out clean. After baking, allow the cake to cool for about 15 to 20 minutes.
Meanwhile, in a separate smaller bowl, mix the Jello mix with the boiling water.
Then add the cold water, continuing to mix well, 'til the Jello mix is fully dissolved.
Poke the top of the cake all over with a fork, creating small holes all over the top of the cake.
Slowly pour the Jello mixture over the entire cake, and allow the cake to finish cooling.
Using a spatula, gently spread the Cool Whip evenly over the entire cooled cake.
Add 5 or more rows of blueberries to the top left corner of the cake.
Stem and slice the strawberries length wise; then add rows of strawberries to create the red stripes for your cake. I usually have enough room to add 4 rows of strawberries to my cake.
When you're done decorating, cover and chill your Fourth of July cake for 3 to 4 hours before serving.