Layout the cups or containers you’ll use on a flat surface. I use a large cookie tray that fits in my fridge.
Place 3 ounce package lemon-flavored jello in a medium bowl.
Pour 1 cup boiling water and stir until completely dissolved.
Pour in 1 cup vodka (or cold water if making cups without alcohol) and stir until combined. The mixture should just be warm to the touch.
Carefully pour into the containers. Use a pitcher or tablespoons if the cups are small. Chill the jello cups in the fridge for about 1 and ½ hours or until set.
Once the yellow has begun to set up, you can begin making the orange-flavored gelatin.
Repeat the instructions using 3 ounce package orange-flavored jello, 1 cup boiling water and mixing it with the powder and 1 cup vodka.
Let it cool down as much as possible without letting it set. Stir it frequently until it thickens and is barely warm.
Pour the orange gelatin mixture over the yellow jello carefully and in a circular motion.
Transfer the jello cups to the refrigerator and allow to set for about 1 and ½ hours or until completely set.
When ready to serve, prepare a piping bag fitted with a large star tip or use a spoon to add 2 cups Cool Whip or freshly whipped cream to the top of the orange layer, dividing evenly among the shots.
Top with 1 cup candy corn, dividing them between the cups right before serving.