I believe a normal magic 8-ball has raised letters so they press against the top and push all the colored liquid aside. So a normal d20 with recessed numbers probably doesn’t work as well.
When I saw this posted yesterday, I started down a rabbit hole of figuring out how to make a magic d20 like that, but I couldn’t find any stls or 3D models of a d20 with raised numbers, since that wouldn’t make any sense for 99.9% of uses.
I found this video of someone making their own custom magic 8-ball with links to stl files with raised letters. Someone who knows how to create the files for a 3D printer could probably easily extrude the numbers on the faces, but that person isn’t me
This jpg rationing makes me sad for what we used to have. When I was young, the internet was young, and jpg was overflowing. But as we burned through the last of the cheaply minable jpg we had to turn to increasingly cost ineffective means, like jpg rigs to extract deposits from the ocean floor, and accordingly images everywhere became clearer and clearer.
It would all be fine if we could just make a cost effective way of recycling jpg or green jpg technology would be adopted worldwide. But that's not something you or I can accomplish, we need whole governments embracing the switch to new jpg sources for it work.