Gong-gi case.

You can print this case if your Gong-gi dice diameter is 16.5mm and less. you can print those from user UNI3D:https://makerworld.com/en/models/927340-squid-game-2-gong-gi-no-ams?from=search#profileId-890563 Print takes about 1h15min gap between cover and bottom is about 0.05 mm in project. with my filament it comes exacelly good fit.