I used the Openscad celtic knot library by beanz on GitHub to adorn this box with some celtic themed knots. You will need the celtic knots openscad library to load my openscad models. The lid can be assembled by sliding filament into the hole and melting it on the ends. The hole is a bit too small for 1.75mm filament when printed so you will likely have to use a drill bit to drill it out.