Snowman Marshmallows. Cut marshmallows in half - dust in a mixture of power sugar & corn starch. Shake off extra "dust". Using Black 20-second icing make your dots -- eyes & smile. Using Orange piping icing give 'em a nose.Let the icing dry for a few hours and you’ll have a fleet of adorable little marshmallows. For a quick project - you get lots of smiles!