Make sure your candy melts are fully melted and smooth but not too hot. Using a skewer, dip and spin the Oreo ball so that it is completely covered. Hold the skewer on the edge of the bowl and gently tap or use a spoon to remove excess chocolate. Use a fork to help lift the Oreo ball off the skewer and transfer it to the wax paper or parchment paper so that the hole from the skewer is at the bottom. Apply your decorations immediately so that they easily stick to the melty chocolate.