This small box is the perfect size for holding rings, maybe while you are cooking or sleeping, or other little things.  The threaded body and lid close securely.  It needs to be printed in vase mode with 1 mm thick external perimeters.  The included g-code is for PLA and a 0.6mm nozzle so it prints fast and costs little.  The .stl and .3mf files are also included.