Sprout Pencil

Sprout is at first glance just another wooden pencil. Not that there's anything wrong with wooden pencils; they're still the writing and drawing implement of choice for many people who appreciate the tactile feel and innate naturalness they possess. This particular one is made from Ticonderoga cedar, but features no eraser. Instead, the non-writing end of Sprout houses seeds.
The idea is that once the pencil has been used and sharpened multiple times until it's nothing more than a stub, it gets planted in a small container of soil and watered. The capsule at the end of the pencil contains three seeds of the plant of the user's choosing – there are 22 variants at present, including basil, eggplant, marigold, radish, and tomato – which will then hopefully germinate.
 The seed capsule dissolves after several waterings, and once the plant has embedded itself in the soil the pencil can either be removed or used as a place marker. Given the right conditions and enough love and attention, the seed will blossom into a full-sized plant. What was once nothing more than a pencil stub fit to be thrown away will have produced a living organism capable of brightening up an office or garnishing a salad.