How to force the camera not to draw an object?

Question

Unity

So, I know this question has been asked many times before. And everyone gives the same answer: use layers. Only in my case it will not work to use layers. The reason is clear: they are few. There are 32 in total. Of these, 8 are already occupied.
I specify. I want one (or two, or whatever) of an infinite number of cameras to stop seeing one (or two, or you get the idea) of an infinite number of "stones". In this case, each "stone", and invisible too, remained on the "stones" layer. And the layermasks of each camera remained intact.

Answer 1

Disable MeshRenderon stone.