Designed this decorative box that can be used for any purpose. The design on the lid and the sides is not original, but I regret that I cannot find it again for purposes of providing attribution.

Printing:

I printed this at 70% scale to get the size I wanted, but you can choose your own scale.

I used 20% infill, but a higher infill would make the box more substantial.

I printed it in PLA at 20mm. The lid is a tight fit, so beware if your printer does not have good tolerances.

The box was printed without supports. I printed the lid on its side with support enforcements inside only, i.e. not on the decorative side.

Printed on a Prusa Mini+