Cover cupcake with white glaze icing. Lay black licorice lace “tracks.” Fit a piping bag with a small grass tip, fill with green icing and pipe grass on outside of tracks. Cut a vanilla wafer cookie to be 2-in. long. Place a chocolate wafer roll on top, using a dab of icing to secure. Cut another wafer cookie into a 1-in. square and stack on top of wafer roll. Stick a yellow mini M&M to the front of wafer roll. Place train on tracks and add round black licorice gummies for wheels. Cut a chocolate-covered biscuit stick to be ¾-in. long, top with a small licorice gummy and attach to top of wafer roll.