Bring water to a boil on the stove, in a kettle or in the microwave.
Pour gelatin mix into a mixing bowl or large measuring cup. Top with boiling water. Stir until the gelatin has completely dissolved. Let cool slightly, 5 minutes.
Stir in vodka.
Pour mixture into jello shot cups. Chill in the fridge for 4 hours.
Notes
Lightly grease cups before adding gelatin to help them unstick easier. Use any flavor of gelatin you desire to make fun flavor combinations with the booze. Use cups with lids on them if you plan to transport them.