We used to launch things at the teacher using this in school.
All you need:
1. A bunch of chopsticks, 5-6 pairs would be sufficient.
2. A bunch of rubber-bands.
3. A plastic spoon.
4. A box cutter, or a file or saw, something to cut chopsticks with.
My hands are fairly small and nimble. Those with big hands might want a partner around while trying to tie all the chopsticks together.