I've been making these the last few days
The white one looks like an egg, but the others...I'm not so sure. I think without context, like a bowl or basket, people will probably wonder what the hell they are.
I have 6 of them completed, but the boys like to kick them around & 2 have gone missing. I found the pattern in my "The World of Amigurumi" book. It also has half eggs, with chicks, but the boys preferred just decorated whole eggs. I'm hoping to have a dozen to put in the basket by Sunday. Then I am going to work on mushrooms