Sprout by Igor Lobanov is a true example of changing the way we think about everyday products.
Usually pens are knocked around, tucked away and altogether mistreated but with this concept, all that changes.
The main feature of the developed pen is the structure of a core for ink. It reminds me of a plant stalk; a sprout under the form. Colour of the core adds to the colour of the ink, thus giving it a natural green colour. While writing, as ink is spent, the stalk withers like a dying plant and its colour becomes more yellow. Complete with the pen there is a special support. When the pen is in it, it is slowly filled with ink.