I worked in a nursery with 1-2's and I used absolutely anything everything - I went round each room in the house and took things
Bathroom - flannel, loofah, sponge, soap,
Bedroom - lavendar bag, slippers, candles, small teddy, jewelry box, necklaces, bangles
Kitchen - pots and pans, cutlery, kiwi, potato, wooden spoon, grater,
Lounge - cds, candles, bag of pot pourri, nesting dolls, small pots
etc, etc, I didn't use plastic, or any toys - just things that are round the house that are interesting to exlore,
Try googling