It is possible to use 3D scanning and vase mode 3D printing to achieve a real tree texture effect for functional or decorative items.Here is an example when a Birch Tree Scanned Texture applied to a lampshade.
The lampshade can be 3D printed just in 2 hours in Spiral Vase Mode.Check the blog and instructions:https://3dwithus.com/vase-mode-3d-printing-3d-scanned-oak-birch-pine-tree-texture
LED Only! Check my blog about the 3D printed lampshades:https://3dwithus.com/3d-printed-lamp-shades-ideas-led-vs-incandescent-bulbs
I would recommend to 3D scan your local tree/s to surprise your colleagues and friends using this technique:
https://www.youtube.com/watch?v=e6hncTikToI