If you wonder like Rick Sanchez how Plumbuses got made, here is how to make them with Blender 2.8.

First I create the base plumbus using regular modeling and after that I turn to Dyntopo sculpting to create the plumbus  sculpt.

I also use vertex painting for adding color to the plumbus in the end.

I promise that I applied a bunch of shleem to the material (dinglebob) and that I rubbed the fleeb on the parts where necessary (because of the fleeb juice).

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Production Music courtesy of Epidemic Sound: http://www.epidemicsound.com