Hardly instructive I would think. . .but I did this quickly just to see if I could do it. (That is always the measuring stick after all! See my signature tag line below! π )
The shape probably isn't dead on to the picture, but
I drew a sphere. Cut it in half. JPP. drew a cylinder. Tweaked the shape with Fredo Scale.
Bool Tools or solid tools Difference operation.
Tweaked the shape some more with Fredo scale.
I am sure it could really beautifully massaged (no pun intended) with Artisan or More FredoScale tool tweaking.
egg bed.jpg
egg bed wire.jpg