Instead of designing an entirely new disposable wood form, I wonder if you could just make an attachment like "Chopstick Helpers"[1] that worked with existing disposable chopsticks but had action more akin to pincers.

That being said, I'm definitely still in the "might as well just use chopsticks then" camp

[1] https://www.amazon.com/Inteliventor-6-FUNCHOP-Chopstick-Help...