These plantable chopsticks by Gyeongwan Koo are called To Be Nature for a good reason: each chopstick has a starch-capped tip that houses a tiny seed. After using the chopsticks, just stick them into the ground, tip side down. The starch cap will eventually dissolve, allowing the seed to grow.
What's especially clever about the plantable chopsticks is that they become mini trellises, encouraging a climbing plant to wrap around it as it grows. What do you think about the To Be Nature wood chopstick?