How to quickly make many free-floating objects?

[mmshi]

Is it possible to (quickly) sketch many free-floating object that act as one cohesive object, or do I need to manually create and layer multiple subtools. Here are a couple examples of the type of work I’m talking about by Sam Rolfes (I believe he is using ZBrush because in some pieces the zsphere frames are visible:
https://www.instagram.com/p/Be85m6VDAs-/?hl=en
https://www.instagram.com/p/Bjulc8NDxps/?hl=en
https://www.instagram.com/p/BXnkrwTDqzn/?hl=en

The first link looks like it might be possible using multiple subtools because there are only a few independent objects, but the second and third have so many small floating bits I can’t imagine how long it would take by that process. Is it possible in zbrush to quickly sketch multiple forms somehow?

[marcus_civis]

You can do some of that using ZSketch. You need to draw onto something to get started - in myexample I appended a zsphere to the head and then drew on the head - but you can use Alt to delete parts and Shift to smooth.

Read more on ZSketch here:
http://docs.pixologic.com/user-guide/3d-modeling/modeling-basics/creating-meshes/zsketch/

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[mmshi]

Thank you!