Loads of things,
Boiled rice is fun too, as long as there is no salt, I cook it without salt for my dog who has a very sensitive stomach, and I gave them a small part that was left over, they loved it, and were chewing the goo off each other's beaks, they love sunflower seeds, and other seeds too, and yogurt is excellent, led to them attacking anything white with gusto, my jumpers are not safe any more, they peck at them... lol....
But I mainly give them things like vegetables that can be hung up and give them some fun too, celery is good, spinach. I have given them left over porridge that also has nothing in it, and tomatoes, and fruit....
Just a variety to add a bit of interest and exploration....lol...
Just have some fun watching them, and trying to make sure they are not stuck with boring old pellets all the time. they really like a slice of bread that I hold onto and they tear pieces off it and then chase each other to take the excess. plus it is encourgang them to trust me.
Have fun with your girls,
Jena.