Pipe melted chocolate on the sides of the roof, and attach 5 rectangular cookies per side, to make the roof. Place in the freezer for 10 minutes.
Cut off the ends of the pocky that are not covered in chocolate, and attach the pocky to the roof in two columns per roof side, securing with melted chocolate. Place in the freezer for another 10 minutes. Once the chocolate has set, pipe some chocolate between the individual pocky sticks to conceal the biscuits underneath. Milk chocolate matches best with the colour of the pocky. Place in the freezer for 5-10 minutes.
Make the path and garden. Attach the macaron, as the front door, to the house with melted chocolate. Attach a chocolate raisin to the macaron as a door handle with melted chocolate as well, and hold in place until the chocolate begins to set. Then place in the freezer for 5-10 minutes. Create a path with the chocolate raisins from the house to the edge of the tray, and secure to the tray with melted chocolate. Place the remaining chocolate raisins around the perimeter of the house and attach with melted chocolate. Arrange the Ferrero Roche truffles around the front of the house to look like bushes or hedges, and secure to the tray with melted chocolate. Place this in the freezer for a final 10 minutes, or until everything is completely set.
Once the chocolate has set, dust icing sugar over the house, roof and garden to look like a fresh snow fall. The texture of the pocky, Ferrero Roche and chocolate raisins will add wonderful dimension to the icing sugar, and will give the house a rustic feel.