Dip a pretzel rod two-thirds of the way into melted white chocolate, or drizzle chocolate over pretzel with a spoon. Attach miniature chocolate chips for eyes and buttons; attach a sprinkle for a nose.
Using decorating gel, add a mouth.
For hat, attach a chocolate kiss to the top of pretzel. Sprinkle snowman with nonpareils. Carefully stand snowman upright in a tall glass or press the bottom of the pretzel rod into a 2-in.-thick piece of Styrofoam. For scarve, cut fruit rolls into thin strips; tie around snowmen.