None of the boxes I could find would fit the older copy of Phase 10 I had, which seems to have slightly larger-than-average cards.

I also designed the lid so that it could be used to track where each player is up to, with some pegs you can throw in the box on top of the cards.

Feel free to edit it as you see fit here:
[https://cad.onshape.com/documents/3fa035e94c72f00e20addd75/w/9baf76fbaf362e21534363a8/e/b7bca36dcb25e62f35b9a34d?renderMode=0&uiState=694a7de69d86ee59f8cca051](https://cad.onshape.com/documents/3fa035e94c72f00e20addd75/w/9baf76fbaf362e21534363a8/e/b7bca36dcb25e62f35b9a34d?renderMode=0&uiState=694a7de69d86ee59f8cca051)