Place Oreo cookies in a food processor and pulse into fine crumbs. Spoon crumbs into the bottom of rocks or martini glass. Even out the crumbs and lightly press into the glass.

In a mixing bowl combine Nutella, Neufchatel cheese, 8 ounces of whipped topping, and Frangelico. Whisk into a smooth creamy consistency and pipe into glasses on top of cookie layer.

Whisk together 8 ounces of whipped topping with the powdered sugar (adding powdered sugar helps to keep the topping stiff). Pipe the whipped topping on to the Nutella layer.

Place your marble tile in the freezer for at least one hour.

Temper the chocolate in the microwave and transfer into a small piping bag. Pipe the chocolate directly onto the frozen stone. The chocolate will set up almost immediately. Using a pastry knife, metal spatula, or I use a putty knife that I reserve just for chocolates, transfer the designs onto wax paper and allow them to completely set up.

Complete the dessert with the candy design and some toasted hazelnuts. While the chocolate designs are easy to make you could also use a curl of chocolate, sprinkles, or a Ferro Wafer Roll.