Add red chocolate to one bowl and melt in microwave in 30 second increments stirring in between until creamy and smooth. Repeat this step for the black chocolate.

Fill the molds with red melted chocolate on one side and black melted chocolate on the side. Make sure to only fill the sides of the mold all the way to the top and keeping the inside hollow. Use the back of a spoon to guide the chocolate throughout the mold.

Place in the freezer for about 10-15 minutes or until they are easy to pop out. Very carefully remove the chocolate from the mold. If they don't pop out easily, place back in freezer for a few more minutes.

In the red half add cocoa mix and some mini marshmallows on top.

Heat a plate in the microwave for about 15 seconds, carefully taking it out cause the plate will be hot. Take the black chocolate half and smooth and press the open part onto the hot plate for a few seconds to melt the chocolate and twist a bit to smooth the edges. Connect the two half pieces of chocolates together and seal together. Allow to dry.

For the ears take 2 black chocolate candy melts and using a knife cut a straight edge on candy melt.

In a bowl, melt some black candy melts in the microwave for about 30 seconds or until creamy and smooth. Dip the straight edge of the candy melt into melted chocolate and place the ear melted chocolate side down onto the top of the hot cocoa bomb. Repeat these steps for the other ear making sure they are spaced apart. Place in freezer for a few minutes to harden.

In a bowl, melt some yellow candy melts in the microwave for about 30 seconds or until creamy and smooth. Place in a disposable piping bag or zip lock bag with the tip cut off. 

Pipe 2 yellow buttons on the front of the red side of the cocoa bomb. Place back in freezer for a few minutes to allow to harden.

To use a hot cocoa bomb, carefully place in the bottom of a cup. Heat milk separately in microwave or on stovetop. Pour piping hot milk in cup over top of hot cocoa bomb and watch it open up. Stir and enjoy!