Put the orange candy melts in a bowl and melt in the microwave per the package directions.
Put 1 tablespoon of the chocolate into the molds and make certain to get it all the way up the sides. Leave it a bit thick so that it won't break easily as well.
Put them in the freezer for 5 minutes.
After the time has passed, take them out of the freezer and give the sides a gentle tap. This will loosen the chocolate and help it to slide out easier.
Fill half the molds with 1 tablespoon hot chocolate mix, 1 orange candy slice, and 8 mini marshmallows.
Put a microwave-safe plate in the microwave and heat the plate until it's warm to the touch. Then put the empty half of the mold face down to melt the edge. Once melted, stick on the other filled half of the mold to secure them together.You can also pipe melted chocolate on the edges and secure them together that way as well.
Drizzle chocolate over the top and a slice of the chocolate orange right on top as well.