DD has had her Pooh bear in her cot from birth.
She still to this day sleeps with him (and he goes to CC with here too).
She since has Iggle PIggle too lol... I find she will squeeze him for the music to put herself to sleep

DS has a mobile. At night i dont have the mobile circulating but do use the night sounds/light.
He has a toy in there for familiarity but he is too young to know i guess yet