How about buying some sinchies pouches? They have a FB page. They're fairly inexpensive too and reusable! You could then use plain yoghurt and add your own fruit to them or even just buy some plain yoghurt and mix in some puréed apple. The Coles 6 pack has no baddies in it and you would only need a small amount to sweeten or you could sweeten it with a little honey or vanilla bean paste.