Darwin has a few favorites that havent been mentioned yet. This one I got from a parrot store in Portland:
And this one was from Petsmart:
Darwin had no interest in that plastic ball with a bell in it until I stuck a walnut inside of it. I have been getting shelled walnuts and cracking them open a bit, and he spends lots of time trying to get that walnut out from inside the plastic ball. I also get (non-sulfered) pineapple rings and stick them in there too. Or you can hang the pineapple ring from a plastic chain (Darwin spends loads of time with that too).
I love this thread!