Boil 1 cup of water in a saucepan.
Stir in the orange jello mix until fully dissolved.
Add 1 cup of vodka and stir well.
Pour the orange jello mixture into shot glasses, filling them halfway.
Refrigerate for about 30 minutes until set.
Repeat the process using lime jello for the next layer.
Pour the lime jello mixture on top and refrigerate again.
Repeat for the grape jello layer.
Chill for at least 4 hours until fully set.
Garnish with gummy worms and candy eyeballs before serving.