There are a lot and some take a bit of work to find but I can't do anything with them. Do they serve a purpose? --- -- Sinjin @ Game Chronicles -- "You don't stop playing games when you get old...you get old when you stop playing games."
Yes. In your second play through of the game, the dolls will have hats on them that you can collect and wear. There is a trophy for collecting all 25 of them. If you are having trouble locating them, check the FAQ's.