Probably imported objects from sources like wavefront objects and 3ds objects, etc. Although some people here could do it with Booleans and metaballs.

This is not my "second childhood". I'm not finished with the first one yet.

Time flies like an arrow; fruit flies like a banana.

"I'd like to die peacefully in my sleep like my grandfather....not screaming in terror like the passengers on his bus." - Jack Handy