As good of a chopstick user that I am, the problem is the lateral slip you get with chopsticks when driving them into the dirt. To avoid slip you have to almost crush the plant, yikes. The tweezers give that tong action where you only have to provide enough pressure on the plant to grasp it lightly, then the rest of your force goes into drilling. No lateral slip with tweezers/tongs.
But as a woodworker, you could find a way to couple the sticks so there is no torsion but there is still pinching bend. For instance, Children learning chopsticks are wrapped in rubber band at the fulcrum to help avoid slippage.
Last edited by Jahn; 05-03-2013 at 12:50 AM.