I finally did receive the mini ring toss game from Parrotdise Perch for the lovies and I have added it to Nin's training time. Right now he's learning that "hoop" (I thought "ring" would be too similar to his name) means to touch the ring. This video is from his second session involving the ring toss. I confused him a little at the end when I placed the ring on my flat palm and gave the cue -- he is used to a flat palm paired with "come" to mean recall -- but he figured it out!
Today was our fourth session, and he will now *sometimes* lift a ring off the post when I show it to him and give the cue.