In a pitcher, combine cream, vodka and liqueur. Refrigerate until serving.
In a large bowl, beat cream cheese and confectioners' sugar until smooth. Gradually beat in cream until stiff peaks form. Fold in 3 tablespoons crushed candies; pour remaining candies onto a small plate. Refrigerate whipped cream mixture until serving.
In a microwave-safe bowl, melt chips and shortening; stir until smooth. Spread onto a small plate. Spin rims of 12 cocktail glasses into melted chip mixture, then into crushed candies. Pour vodka mixture into prepared glasses; dollop with whipped cream mixture. If desired, garnish with additional candy canes.