A Japanese man spent over 3 months gluing together used chopsticks to make a canoe.
Shuhei Ogawara collected the 7,382 chopsticks from the cafeteria at the city hall where he worked. The collection took two years.
Ogawara commented that simply disposing of the chopsticks were a waste of perfectly good wood.
A man in Beijing with the same thought was once caught packaging and selling used chopsticks without any form of disinfection.
I prefer the boat idea.