we did a combination of cheap and long lasting!
had a large pearlised balloon in a box (and a spare) with shiny wrapping papr on teh box and spome big bubble wrap around it..
on the day and over the next couple days they were ds absoute favourite things
a bubble machine that worked in the bathroom as well and big bottle of bubbles- got lots of value from that
and a tripp trapp chair (other makes are around now) which was worth its weight in gold - with the infant set of cushions..
for christmas - yep another balloon in a box(possibly 2 slightly smaller ones shiny ones-seriously the joy)
and a thats not my xxxxx book and a textile christmas book..
and some happy land figures- and I got a second hand happyland pirate ship which lasted years....
we were given some brio - again a good investment present even if not used massively at 1.... as was a start that could add to
my mum found a fabric 'photo' album that you could put your own pictures in which she filled with picture of his world...
my brother brought him some musical instruments 
my friends family bought a wooden noahs ark thing for xmas and added an animal/character a year.....
yes she wont need much but it still nice to mark occasins with some thought :)