My kids like stacking cups. They are great for chewing, building towers, and can be taken in the bath.
They have also chosen their favourite toys that they have become "attached" to. Natalie's is a puppet ****atoo and Phoebe loves a squeaking giraffe that she was given when she was born.
Don't forget, the whole house is filled with stuff you can use to occupy a little person! Mirrors are wonderful! Plastic containers and lids are also a hit in our house.
Books are brilliant for kids of any age.
Natalie has been playing with a cheap set of russian dolls lately (she is older though) - she enjoys naming them and role-playing with them. (Mainly they are called Daddy, Mummy, Natalie, Phoebe and 'the other one'.)