Some children have pacifiers, blankets, or bottles, mine have stuffed animals.
My youngest loves her ponies. I know, I know, mama watch out in a few more years the stuffed ones won't be good enough any more. At this time though she is so adorable with them, She rolls on the floor and says "Neigh neigh, neigh neigh" over and over again. She is just in ectasy over this little stuffed creature. Needless to say it is becoming very well loved.
It makes me wonder how long it will last, my almost 6 year old was the same way, just with ducks, and she still has them and loves them. Not to quite the same extent as when she was 2 but very much none the less.