First, it is good to prepare the bark, to clean it from both sides, from the front to remove the top, thin layer.The drawing is prepared on a separate sheet of paper, better paper, life-size with the size of the crust and its texture.
Translate drawing using carbon paper is not recommended because the color black it will contaminate the material. Tracing is applied to the bark, and fix it in the corners with paper clips and pencil lead round figure. On the material remains barely visible trail, sufficient for burning. The finished product should be in the frame.