Natural woodgrain pencils became popular in the 1990s. Here are those I saved and a few other unusual pencils from that time. The Berol Triangles, the red pencil at the bottom of the recycled batch, is just what it says — it has a triangular barrel. The bottom-most pencil in the woodgrain group is a Blackfeet pencil with golden letters as opposed to the black letters on the pencils that came in the cedar box, shown on an earlier post.