The Sprout pencil is the first sustainable pencil in the world that can be planted after use. This is done by replacing the eraser with a special seed capsule. The seed capsule is water soluble, making the pencil simple to plant after use. When planted and watered, the pencil grows into herbs, vegetables and edible flowers. Available in 12 varieties, ranging from basil to green pepper to marigold. Also available for purchase on Amazon.com.