I despise the cheap, warped, injection molded centerpiece that came with our box for Mexican Train, so I decided to make my own.
There is one center slot for a double-number domino of your choosing, and 16 slots on the perimeter. With one slot needed for the Mexican train, the rest can be for players. I recommend getting a larger domino set if you intend on playing with more than the standard number of players.
Printing this in Bambu Gradient PLA looks really great.
My friends and I love using this thing, and the number of slots allows for some really chaotic games.
The author marked this model as their own original creation.