Spread a small amount of peanut butter on the flat side of the cookies; top with remaining cookies. Cut licorice into triangles and squares to make faces. Melt almond bark following package directions. Remove from heat and tint with food coloring. Using tongs, dip each sandwich cookie in melted candy, coating completely. Gently shake each cookie to remove excess coating. Place on wire rack with waxed paper underneath. PLace licorice pieces on the cookies for faces. Cool completely before removing from rack.