I made tiles for white Master Skewb.
There are black, yellow, red, green, blue, and purple.
The tiles are made by plarepair, that is PMMA (Poly Methyl Meta-Acrylate).
PMMA is using at dental clinics for teeth, so the plarepair is almost safety even if we drank it accidentally.

They look nice. How did you cut them?

Plarepair is a mouldable plastic material, you just have to make a mould, no cutting required (I think).

Yes, I made base mold at the beginning, center, center-corner, edge, and corner.
And next, I made duplication molds by Katadori-Kun, that is melted by hot water, and it harden by cooling.
And later, I duplicated all of the tiles by the Katadori-Kun's molds.

Yes, I didn't cut them directly, only removed their thin surplus plates when I duplicated.

I like these tiles, they're really nice.