For the first yellow layer. Boil one cup water with two tablespoons sweetened condensed milk. Mix in island pineapple gelatin mix into the boiling water. Whisk well. Add one cup cold water. If adding in rum use 1/2 cup rum and 1/2 cup water. Whisk well.

Pour yellow layer to 1/3 of the cup. Place a lid on top of the jello shot cups and pop into the fridge for two hours or until set.

For the second green layer. Boil one cup water with two tablespoons sweetened condensed milk. Mix in one envelope clear gelatin Knox into the hot water and whisk well. Add in 4 drops lime green food gel and one cup cold water. Whisk well.

Pour green layer into the next 1/3 of the jello shot cup on top of the yellow layer. Pop into the fridge for two hours or until set.

For the last purple layer. Boil one cup water with two tablespoons sweetened condensed milk. Mix in one envelope clear gelatin Knox into the hot water and whisk well. Add in 2 drops purple food gel and one cup cold water. Whisk well.

Pour purple layer into the last 1/3 of the jello shot cup on top of the green layer. Pop into the fridge for two hours or until set.

When ready to serve top with whipped topping, purple, green, and gold sanding sugars.