This box was made out of slatted wood 1cm x 6cmx 30cm. It is held together using pins, and wood-glue. Was then wood-dyed and repeatedly waxed.
The metal fittings are just pieces of aluminum cut to shape and painted black. The binding is a 4mm thick piece of leather i had around.
Internally, the top part is lined with velvet that was lightly glued to the wood. The bottom part has some retainers for the mortar and pestles to stop them rattling around too much while in transit.