Here's a NURBs based material ball to help with developing your procedural textures. There are several parts to the model that you can turn on/off as you need that offer a certain amount future proofing.
If you want to share your results there is a thread here https://www.keyshot.com/forum/index.php?topic=12902.msg63486#new where you can post them to.
Martin
I like it Martin, Great idea! :)
thank you :)