The reason why people don't model meshes like that is because it's tedious, inefficient, and can drastically increase the render time of a model. Unless it's something that's going to be created in the real world, it is typically inefficient when you can get the same effect with texture transparency and bump map, especially since a microphone isn't exactly something one views from up close, so if it's going in a scene, texture is generally enough. I mean after a given amount of time, if it's for rendering purposes, it's basically more practical to photograph an actual microphone. You can also use photogrammetry on an actual microphone to turn it into a 3D model that would look better than anything you could make in a modelling program, and it would take all of a half an hour with any smartphone.
You may want to make a full 3D model mesh for the heck of it, but really, it's prudent to discourage potentially time wasting things that may make no difference. People are more than willing to help, but when people see requests of things that are inefficient and tedious for the 3D world, you're more likely to get advice to not do it, rather than advice on how to do it, as to tell you how to do it, usually involves doing it themselves to show you. So then you have multiple people working on these inefficient actions, being even more inefficient.