How to make a 3D model of a sealant?

Question

3D

The essence of the question is simple. How is such a model made? What is used from tools and programs.
Mainly interested in the assholes of this sealant. Because for me this is the hardest part.

Answer 1

To create any 3D model, they use what they know best.
I Know 3D MAX and ZBrush - in any of them you can make a similar package, but in completely different ways.
The easiest way to do this in MAX (just as an example) is to move the vertices of the edges of the cylinder, wrapping it like a wrapper, then apply anti-aliasing.