Start by removing about 16-20 matching pieces of the melting wafers and set aside. These will eventually be Mickey's ears.
Using a heat safe bowl, pour the remaining candy melts into the bowl and place in the microwave for 30 seconds then remove and stir. Repeat until the candy melts are completely melted and smooth.
Next, using a spoon, fill a silicone mold with 1-2 tbsp of the chocolate and then carefully swirl the chocolate to completely coat the inside of the mold
Flip the mold upside down and lightly shake the extra chocolate back into the bowl.
Repeat the steps above until all of your molds are coated with candy melts.
Place the coated molds into the fridge for 5-10 minutes
Remove from the fridge and gently peel the silicone mold back away from the hardened chocolate shell
Carefully place the mold onto a cutting board and you should now have 8 half sphere molds
Scoop some of the melted chocolate into the piping bag and cut the tip (if you need to reheat the candy melts you can do that now)
Scoop about 1 tablespoon of the hot cocoa mix into the bottom of the sphere mold and sprinkle in a few of the mini marshmallows
Pipe a line of the melted chocolate around the edge of the bottom shell
Carefully place the top shell onto the bottom and gently hold the top to the bottom for about 30 seconds to a minute to allow the piped chocolate to harden to the top shell. You can use your finger to ensure a seal around the two halves.
Place the mold back onto the cutting board and drizzle chocolate over the top of the hot cocoa bomb
Using a small skillet, place over low heat and once the pan feels warm, place the bottom of the candy melts that you set aside
Melt the bottom of the chocolate wafer so that it becomes a flat edge instead of round edge
Quickly place the freshly melted edge onto the side of the cocoa bomb to create a “Ear”
Repeat the same step with the second ear
Allow to harden before enjoying!