I have two small sons who are four and two
My four year old has a massive collection of at least 50 soft toys, including almost everything on the list above. His favourite is a traditional teddy bear. My favourite from his collection is a Bee, and I have it as my Facebook profile picture. (There are no insects on the list above)
My two year old is extremely attached to a plastic toy car. It is red and about 8 inches long. He cannot go to sleep without it. It looks quite hard and uncomfortable to cuddle at night.