Clear a space in your refrigerator for 2 regular size muffin pans. Lay cups in the muffin tin on an angle.
In a large measuring cup with a spout, add 1 cup of boiling water and stir in 1 package of blue jello.
Mix well, for about 2 minutes, or until completely dissolved.
Add 1 cup of cold water and mix well.
Pour a small amount into each cup and lay on an angle in the muffin tin.
Refrigerate until firm, about an hour.
In a measuring bowl with a spout, add ½ cup of cold water and 2 packages of unflavored gelatin. Let set for about 5 minutes or until thick.
Stir in 1-½ cups boiling water and mix until smooth.
Pour in sweetened condensed milk and mix well.
Let set to cool.
Remove cups from refrigerator and tilt the cups in the opposite direction.
Fill each cup with sweetened condensed milk and return to the refrigerator until firm, about an hour.
Remove cups from the refrigerator and stand them up on a flat surface, or place them, right side up, into a 9x13 baking pan.
In a large measuring cup with a spout, add 1 cup of boiling water and stir in 1 package of red jello. Mix well, for about 2 minutes, or until completely dissolved.
Add 1 cup of cold water and mix well.
Pour into cups, filling to the top.
Refrigerate until firm, about an hour.
Before serving, top with whipped topping and sprinkles.