via Lorax Community Kitchen blog:

Pencils in the kitchen? What’s that about?

Sprout herb pencils are in fact a simple, innovative, and practically perfect recycling idea!
Each of these charming writing (or sketching) instruments is tipped with a water-activated seed capsule which can be planted in soil after the writing element has been used up.
After a short while, your diminished pencils will grow into something living, delicious, newly beneficial to your life and our planet.

These would make wonderful holiday (or any time) gifts, and are available for purchase from the Who’d Have Thought? website.