Place one colored chocolate in the microwave for 30 seconds. As soon as the chocolate is mostly melted, remove from the microwave and mix well until it is completely melted. (Important: Do not microwave for more than 30 seconds at a time. Putting milk chocolate in the microwave for too long will cause it to harden instead of melt)
Quickly repeat with the second color chocolate.
Drop spoonfuls of chocolate into a 9-inch (23-cm) round foil pan, alternating the colors. Gently tap the pan against your work surface to settle and distribute the chocolate evenly. To create the marble effect, swirl through the chocolate with a knife edge.
Refrigerate the pan to set and harden the chocolate.
Using sharp scissors, cut down the sides of the pan to remove the chocolate disc.
Using your Kliks, create a ring on the cheesecake and place the disc on top.