Step 1: Add chocolate chips and vegetable oil to a large microwave-safe bowl.
Step 2: Microwave in 30-second intervals, stirring thoroughly between each interval, until the chocolate is completely smooth.
Step 3: Let the chocolate cool slightly for a few minutes, then gently fold in the thawed whipped topping until the mixture is light, fluffy, and uniform in color.
Step 4: Line a small square pan (8x8) with parchment paper and spread the mixture evenly into the pan.
Step 5: Freeze the mixture for 1–2 hours, or until it is very firm to the touch.
Step 6: Lift the parchment paper out of the pan and cut the frozen block into small squares.
Step 7: Melt the chocolate wafers according to package directions until smooth.
Step 8: Dip each frozen square into the melted chocolate coating, ensuring it is covered completely, and place back on parchment paper to set.
Step 9: Refrigerate the finished candies until ready to serve.