I really wish that I could help with this one, but not having any experience with cockatoos makes it hard. I know that when Kiki, Senegal was doing this type of thing, I had the wonderfully evil thought of playing baseball with her, you know " Batter up". not that I would have ever done it, but the thought was there.
Perhaps after learning more something beneficial will come to mind, but until then I will just have to follow along and learn from you.