This is where I really get value out of 3D printing: I love Palace of Mad King Ludwig, but I hate the stacks of tiles; I'm too prone to knocking them over!
A few minutes with my callipers and some time on Tinkercad, followed by half a day of printing, and now I have perfect tile holders!
Printed in marble filament. Files available here: https://www.thingiverse.com/thing:7024898

The board game Palace of Mad King Ludwig, with marble coloured tile holder holding all the tiles (viewed from the front)

The board game Palace of Mad King Ludwig, with marble coloured tile holder holding all the tiles (viewed from an angle)