I hesitate to offer another suggestion but . . .
I would like to mention, in case anyone is not aware, that there is a standard die for d12 that is not the common pentagonal faced regular solid.
The Rhombic dodecahedron is a valid shape for a D12.
It has a number of interesting properties.
It is a space filling solid.
it has many axis of symmetry.
Garnet is a common example of the rhombic dodecahedron in nature
When a volume that is filled by them is sliced along one axis it shows a square grid, where the layers above and below are offset on the centers of the layer sliced.
Similarly when sliced along another axis it forms a hexagonal grid, where the layers above and below are offset on the centers of the layer sliced.
I used this all the time to demonstrate that either a square grid or a hex grid is valid for a volume, but only if the layers above and below are offset correctly.
https://www.google.com/search?q=rhombic ... e&ie=UTF-8
an example that used to be available on amazon:
https://www.amazon.com/Rhombic-Dodecahe ... B086R9GPGB
https://www.mathartfun.com/cgi-bin/sc/p ... decahedron
How many dice would be reasonable for playing?
I plan to order 1 set of 5 black dice and 3 sets of 5 white dice ( 20 in total ) based upon the comment of needing twelve in the coyote-crow-dice posting.