I have pet turtles in the garden. The chopsticks are good for feeding them. Otherwise they try to latch onto my fingers rather than the food I'm giving them. Talk about 'biting the hand that feeds you'

Chopsticks stand up to weathering also.
They are a very handy garden marker.

I am picturing in my head, you sitting with your turtles feeding them with chopsticks. I would think to use them as markers, if you are going to write the name of the plants on it, you would need to write very small. Often times I just find I cannot throw away things that are perfectly good. I have a friend who owns a Chinese resturant and have never asked what they do with the used chopsticks, I fear they would throw them away and then i would have to take them and find a use for them. So I don't ask.