I've had a lot of fun making these, originally I planned to just extract the texture from a photo but then got a little carried away. No PBR, but I don't think it's even necessary, you can just plug the base into bump like I did here. Anyway, you can follow me on boosty, I'm planning to come back and start making more stuff like this.(https://boosty.to/always_has_bean) Upd: scaled them down to something reasonable, they used to be like 7 meters or sth