In a medium, microwave-safe bowl, place the chocolate squares and microwave them for 35-40 seconds, just enough to soften. Pour the sweetened condensed milk over the chocolate, then return to the microwave for 50-60 seconds. Remove and stir until the chocolate is fully melted and a thick hot fudge sauce forms.
Spoon hot fudge sauce into the bottom of 4-5 small shooter glasses. Using a medium-sized ice cream scoop, scoop some of the vanilla ice cream into a rounded ball and plop it carefully on top of the hot fudge sauce. Use the small sized scoop to do the same, placing the second scoop on top of the first one to create the snowman’s head.
Gently press the carrot nose & chocolate chip eyes into the snowman’s head. Return to the freezer and allow to freeze until ready to serve (to ensure your shot glasses don’t freeze & crack, I recommend making these just about 1 hour ahead of time).