Beat together the cream cheese & confectioners sugar until smooth & creamy. Beat in the peanut butter. Fold in half the tub of Cool Whip. Spread in the bottom of a premade graham cracker crust. Set aside.
Place 15 fun sized in a microwavable bowl along with 1.5 tablespoons of heavy cream. Microwave for 60-90 seconds until melted. Spread on top of the peanut butter cream layer, and then lightly mix it together in the crust. You don't want to completely mix it, just slightly - making a swirl appearance. Place in the fridge or freezer until cool.
Spread the remaining ½ tub of Cool Whip on top of the pie. Drizzle with chocolate syrup. Chop the remaining candy bars & sprinkle on top. Store in the fridge.