I usually use a core wool for my felted animals, and then I felt in an outer 'fur' wool. But for this hamster, I didn't use core wool. Also, he doesn't have feet (hands and feet are one of the most time consuming parts for me. Some people use polymer clay feet or cut out hands and feet from a piece of ready made felt. I prefer the hands and feet to be needle felted) It doesn't make too much difference though, as he is still able to stand, and it means I was able to list him at a lower price. It was obviously still time consuming, but I did manage to cut back on the time it took to make him.
He is available to buy here in my Etsy shop: Needle Felted Tiny Little Summer Sunflower Hamster by Mrs Plop's Shoppe