Chop the chocolate into small pieces and place it in a microwave-safe bowl.

Heat the chocolate in the microwave in 30-second intervals, stirring after each interval, until it is about three-quarters melted.

Remove the bowl from the microwave and continue stirring until the chocolate is fully melted and smooth.

Place the wafers in a microwave-safe bowl and heat in 30-second intervals, stirring after each interval, until the chocolate is melted and smooth.

Line the silicone molds with the melted chocolate, making sure to coat the inside evenly and get into all the corners and crevices.

Place the mold in the fridge for about 10 minutes, or until the chocolate has hardened.

Repeat the process to create a second layer of chocolate in the mold.

Carefully pop the chocolate shells out of the mold. You should now have two half-sphere shapes.

In a microwave-safe bowl, combine Bailey's Irish Cream and chocolate chips. Heat in the microwave for 30-second intervals, stirring after each interval, until the chocolate is melted and smooth.

Stir in the hot chocolate mix until well combined.

Place one of the chocolate shells onto a plate or tray.

Fill the center of the chocolate shell with a spoonful of Bailey's Irish Cream ganache and a few mini marshmallows.

Place the other chocolate shell on top of the filled shell, gently pressing the edges together to seal the bomb.

Heat a plate or pan on the stove over low heat. Place one of the hot chocolate bombs on the hot surface for a few seconds, just until the edge begins to melt slightly.

Carefully place the partially-melted edge of the hot chocolate bomb against the non-melted edge of the other half of the bomb, pressing gently to seal them together.

Repeat the process with the remaining hot chocolate bombs.

If desired, drizzle the top of the hot chocolate bombs with additional melted chocolate and sprinkle with mini marshmallows.

To use the hot chocolate bombs, place one in a mug and pour hot milk over the top. As the bomb begins to melt, it will release the hot chocolate mix and any fillings inside, creating a delicious and creamy mug of hot chocolate. Enjoy!