I have made theses for the beginner set of the go game. The board used for theses bowls is a 9x9 / 13x13. If you want a bigger bowl, you can used the Freecad file and changed one dimensions (almost all dimensions are dynamic).
I have printed it 16 times for my go club. It's important to print it reversed ( mirror on Z), to print it without support.
I have print it with a layer height of 0.1 mm and fill density of 20 %.
Material Quantity almost 120 grams ( 20% )
Dimensions 110 mm x 110 mm x 60 mm
The author hasn't provided the model origin yet.