How to model a fluid like object without particle system or fluid simulation What I had in mind is something like this: 



Now I know it probably can be done with particle system and metaballs (something like this ) or fluid simulation.

Thing is that in order to do it with metaballs you need a quite powerful PC to handle all the polygons and same thing with fluid simulation ( and I also have 0 experience when it comes to fluids sim). Is there a way to make object like in images with bend modifier or even maybe sculpting, any idea?
You could try using a displacement modifier with a texture.  

I tried using a clouds texture and a stucci texture, which came up with a decent result. Didn't look to much like the image, but if you have a better base mesh, and just keep messing around with adding more textures, and adjusting size and strength, you should be able to come up with a good answer.

p.s. you need to add another displacement modifier for each new texture you add.