Interesting idea, it's almost like a Kinder Surprise Simulator haha, I'm waiting for the egg to hatch, eager to see what comes out. I wasn't too sure what I was doing though, how exactly I was influencing the eggs birth, if I was influencing it at all.
After trying quite a lot of eggs, I managed to get:
Elephant, Duck, Giraffe, Crocodile, Turtle, Horse, Tiger
I wonder what those last animals are...