Whisk together instant pudding mix and milk and pour into pie crust. Allow pudding to set up for 5 minutes.
While the pudding is setting up, prepare the topping by folding the marshmallow creme into the whipped topping. The mixture may appear a little lumpy at first, but it will smooth out as you continue to combine it.
Pipe or spoon the topping onto the pie.
Refrigerate for at least 30 minutes before serving.
Before serving, top pie with mini marshmallows, chocolate curls or chocolate chips and graham cracker crumbs.