Combine the vodka and 1 cup candy corn in a jar. Let the mixture sit for at least 2 hours at room temperature, then strain out the candy corn pieces.
Fill a cocktail shaker with ice. Add the strained vodka, coffee liqueur, and heavy cream.
Shake until the mixture is well chilled and lightly frothy.
Strain into four rocks glasses filled with fresh ice.
Drop a few pieces of candy corn into each glass for garnish.