Place chocolate chips and coconut oil in a microwave safe measuring cup and melt for 30 seconds. Stir until smooth, add more microwave time as necessary.
Pour a small amount of chocolate mixture on a small plate. Scatter chocolate sprinkles on another small plate.
Press the rim of one chilled glass in the chocolate mixture, lift and then carefully roll the rim in the chocolate sprinkles before it becomes solid. Repeat with second glass.
Drizzle chocolate mixture down the inside of the glasses and allow to solidify.
FOR THE COCKTAIL
Place cold brew ice cubes, ice cream, and alcohol in a high powered blender. Process until smooth.
Pour into prepared glasses, top with whipped cream and chocolate shavings.