Marnie has a pink elephant blankie who we call Ellie. She has had it in her cot since birth and absolutely loves it. She doesn't have any other comforters i.e. dummy, thumb etc. We decided before she was born that we would definitely not use a dummy and thought a blankie would be a lovely comfort for her - which it is. We bought it at Best & Less. We wash it every other day - and she does protest but I try to throw it in the wash when she is playing with something else- Marnie puts Ellie back in the cot when she wakes up from her sleep.
Hope this helps.