Microwave in 30-second intervals, stirring between each interval, until the chocolate chips are fully melted.
Coat silicone mold with white chocolate. Let sit until is sets.
Fill white chocolate molds with your favorite hot cocoa mix and marshmallows.
Add second white chocolate mold to top. Use your finger to smooth the melted chocolate around the seam.
Drizzle the chocolate over the top of the bombs and decorate with Spring sprinkles.