100 toothpicks will therefore require 100 * 0.001 = 0.1 cubic inches of wood.
Since 1 cubic foot of wood is equal to 1728 cubic inches, 0.1 cubic inches of wood is equivalent to 0.1 / 1728 = 0.0000577 cubic feet of wood.
Therefore, it will take approximately 0.0000577 cubic feet of wood to make 100 toothpicks.