Lead fairy garden friends over a babbling brook by placing a bridge across the span of water or a dry river bed. The length of the bridge will depend upon the distance between the shorelines; hence a variety of bridge sizes are available. To select the correct scale start by measuring the bridge span and then calculate the height of the railings. Materials used to manufacture the bridges, vary from malleable metal to crafted wood to manufactured materials. Decorative enhancements to the bridges may include painted vines, molded stones, or dangled cording.