Mixing Dish is a 50ml dish (66mm diameter) with a threaded lid, designed to assist with the mixing and storage of resin pigments. They are leak resistant, designed with an inner and outer lid lip . Tested with water, no water leaked as long as the lid was tightened properly.
I've also included a mixing mace to help bash lumps out while mixing resin or dye.

Printed a t 0.2mm per layer, in wood PLA, the test prints held water and did not leak. In addition to the material, the shell was set to overlap by 0.1mm, better sealing the surface, but increasing print times.

Updated threading for tighter seal when using default print settings.

Anycubic

Kossel

No

Yes

0.2

60 to 100%