Place the cones on top to finish the pointed hat. Spread a thin layer of purple frosting over the entire cake and refrigerate for 15 minutes. Spread the remaining frosting on top, and smooth. Press cutouts around the side of cake, along with the candy-coated chocolates. Spoon the remaining vanilla frosting into a pastry bag fitted with a small star tip and pipe around the cookie top.
Position wands on and around cake.
Insert candles in the top of cake and serve. Nick Jr. Magazine delivered to your door. Post it to the Nick Jr. Magazine message board.