Bring 1 cup water to a boil. Add Jell-o mix, stirring until dissolved. Turn off heat and stir in remaining water and whiskey, then pour mixture into plastic shot glasses, filling each one two-thirds of the way up. Refrigerate until set, 1 hour.
Top with a dollop of Cool Whip or whipped cream. Add gold sprinkles and top with a 1"-long rainbow candy belt, forming it into a semi-circle, like a rainbow. Serve.
Recipe by 5* trending recipes with videos at https://food.theffeed.com/2018/03/12/pot-o-gold-shots/