Prepare pudding according to package. Let pudding stand to thicken.
Separate pudding into 3 bowls, leave one bowl white, and add a few drops of red food coloring to one bowl and a few drops of blue food coloring to the other.
Layer each colour into a small Dixie cup, starting with the blue, followed by the white and then the red. Cover with tin foil and insert popsicle stick. Chill in the freezer until completely set.
To eat, peel off the Dixie cup paper and enjoy.