Keep in a double boiler/bain marie to melt ⅔ of the chocolate, melt and add the rest to temper the chocolate (see instructions in post) or if you don't care to temper just melt the chocolate simply.
Pour the White Chocolate into the molds
Let it cool until hard, this might take a while so keep aside.
Grab something like a fine kitchen brush or toothpick and dip it into some dark chocolate and draw the face and other details.