wood chopstick or wooden chopstick?

[vaok]

why can't we use "wood chopstick" like the following examples?

stone figures
paper money；
country music
table cloth
river bank
school gate

[Mister Micawber]

.
You can, but the noun 'wood', unlike the other nouns/adjectives you mention, has a distinct adjective form that is preferentially used.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber

[vaok]

Hi,Mister Micawber,

thank you. I see.