Prepare the cake mix and divide the batter evenly between SIX, small bowls.
Following the directions below, dye each batter a different color:
Purple: 9 red and 6 blue drops
Blue: 12 drops
Green: 12 drops
Yellow: 12 drops
Orange: 12 yellow and 4 red drops
Red: 18 drops
Instructions
Directions:
Line the muffin pan wells with baking cups.
Evenly distribute the purple batter among the cups (approximately a heaping half-teaspoon of each), then the blue, and so on, following the order above. (Remember "ROY G. BIV" from your grade school days? That's how I still remember all of the colors in a rainbow: red, orange, yellow, green, blue, indigo & violet.)
As you go, gently spread each layer of the batter with the back of a spoon to cover the color underneath. But be careful not to mix the colors!
Bake the cupcakes according to the cake directions.
Before serving, remove the paper wrapping to show the colors.
Top each cupcake with a "frosting cloud."
For added affect, find small gold-wrapped chocolates to add for the "gold at the end of the rainbow."