Pinecone

Another try at the pineapple or pinecone shape. I increased the segments from 12 to 24 on the vertical axis. Worked on making the basic shape more elliptical first.

Prolate Spheroids - Egg Shapes

After developing another shape I wanted from a simple egg-shape formula I nested a smaller version inside another and created pyramid studs across the surface by connecting intersection from one to the other.