Last year we bought Imogen one of these
http://www.mamasandpapas.com/range/rocking-animals-horses/3710/
then just made a sack up of little toys and books.
My mum bought her one of the does 7-1 sit and ride car things, which Imogen really likes as she can push herself along whereas her trike she can't touch the pedals so i have to push her.
My sister bought her a new dress which i think is quite nice to always have a new outfit for christmas.