I often use Tooth Picks to apply adhesive or mix epoxy or something. Just got tired of the flimsy box the toothpicks come in. This box allows for storage but also sports a curved front and back corners for easy removal.
So the hinge gives a nice smooth action I decided to use Dowel Pins. Available almost anywhere. 1/8” Diameter X 3/8” Long. Any material; IE: Alum, SST, Brass, ET. Also, could print your own pins. To install the Dowel Pins use a small arbor press, bench vise or even a hammer.