You can use any type of small candies to make the walking path and decorate the trees.
Ice cream cones make great trees! If you want your trees to be darker green than the rest of the cake, add 8 to 10 more drops of green food color to the reserved frosting.
Create an attractive display by covering a piece of sturdy cardboard with wrapping paper, then plastic food wrap. Stretch and secure with tape. Or cover cardboard with foil or cooking parchment paper.