Bring one cup of water to a boil and stir into the Berry Blue Jello mix until dissolved. Stir in 2/3 C. of cold water and allow to set until cooled.
Once cooled, stir in 1/2 C. of vodka. Pour blue mixture into shot glasses so that they are 1/3 full. Note: Place shot glasses into mini muffin tins and use the top of the tin as a marker for how much blue mixture to pour into each glass.
Refrigerate until thickened for around 3 hours.
In a small bowl, mix gelatin mix and pineapple juice together.
Remove from heat and stir in the pineapple juice mixture.
Allow to cool to room temperature (may stick it in the fridge for a bit to speed the process).
Once cooled, mix 1/2 C. of vodka into the whipping cream mixture.
Pour the whipping cream mixture into shot glasses so that the glasses are 2/3 of the way full.
Refrigerate until firm for around 2-3 hours.
Pour cooled red jello mixture with vodka into the shot glasses until almost full; refrigerate until firm.
Optional: Garnish tops of shots with whipped cream and red, white and blue sprinkles before serving.
For a kid-friendly version, prepare jello layers according to package instructions; omitting the vodka. Mix 1 C. of pineapple juice with the gelatin when making the white, whipping cream layer.
Optional: Add whipped cream and red, white and blue sprinkles to the tops of the shots.