How would I model a cloud-like object?

[issacl14]

I'm trying to model a semi-spherical object with many bumps on it, with the best word I can use to describe it being "cloud-like." How would I do this? Initially, I tried making a 2D cross-section sketch and then extruding it until I realized that that wouldn't work since it would create a more cuboidal object. I know the sphere option is under "Create Freeform" in the 3D Model toolbar, but I can't find the "bulge" option. I know that Blender can do what I'm looking for, but I don't see how I can import a model from Blender into Inventor so I'm stuck trying to do it in Inventor. Heres an example of what I'm trying to do in Inventor, but done in Blender:

[Frederick_Law]

Random cluster of random diameter spheres.

IV is "mechanical" CAD.  It'll be difficult to model non-mechanical stuff.

IV can import STEP, Parasolid, IGS, OBJ files.

STL too but it should be last option.

[Gabriel_Watson · Accepted solution]

Try starting a Quadball in freeform with a high number of faces and all symmetries:

then pull a face with Transform Mode: All.

Once you're happy with your blob, you could copy it into a properly repaired geometry to get rid of the freeform and forget it ever happened:

[-niels- · Accepted solution]

To add to @Gabriel_Watson 's suggestion: the "soft modification" option might help as well.