So, I managed to produce a sphere sorrounded by cones, like this

[![enter image description here](https://i.stack.imgur.com/8csVS.jpg)](https://i.stack.imgur.com/8csVS.jpg)

The idea is to create a porous particle showing holes with the shape of those cones (exluding them like in this image).

[![enter image description here](https://i.stack.imgur.com/hcFg9.png)](https://i.stack.imgur.com/hcFg9.png)

I have already joined all the cones using Control+J, the next step should be something like this option (typically used in other 2D Graphic Design Software) [![enter image description here](https://i.stack.imgur.com/fCYV5.jpg)](https://i.stack.imgur.com/fCYV5.jpg)

Thanks!