Apply material with different number to each object


Hello, I’m fairly new to C4D and there’s an issue i’m not sure how to solve, I would appreciate any guidance.

I have a scene with around 200 spheres, all as polygonal objects with slightly different shapes and sizes.

In order to communicate effectively with my client (remote work), I wanted to assign a “number” to each sphere so I can then upload the model to sketchfab and have him review it and say “make ball 153 a bit smaller” and so on.

However, I am not sure about how to go about doing this, other than creating 200 materials and applying them one by one. There must be a better way

Thank you very much