7. Melt the white chocolate chips in 15 second intervals until melted, then place the remaining chocolate in a piping bag. Drizzle the chocolate over the top of the bombs and decorate with remaining mint pieces.
8. Allow the chocolate decorations to set before using, around 1 hour.
9. To make the hot chocolate bombs, place the bomb in the bottom of a mug. Pour one cup of hot milk over the top of the bomb to melt the chocolate. When the chocolate is completely melted, stir to combine.