Melt white chocolate in a glass bowl in the microwave. Wrap Styrofoam cone with aluminum foil. Working on a foil lined baking sheet, attach macaroons to the cone using the melted white chocolate. Once all macaroons are attached, drizzle the tree with melted white chocolate. Sprinkle with white sanding sugar and decorate with red hot candies. Place tree in refrigerator to set.
Once set, remove from refrigerator and place tree on stand.