They showed it at a meeting of my local bird club a few weeks ago. I'm glad I saw it but I wouldn't want to pay $25 for it. Basically, you construct a playgym with several arms (I think they recommended at least 6) and a food cup at the end of each arm. In the beginning you place a small treat in each cup and let the bird find it. You progress to putting treats in only some cups and gradually making it harder to get into the cup. To make it get harder, at first you put something lightweight over the cup like an unsecured piece of paper. Then you secure the paper with a rubberband, then go to a piece of light cardboard or wrap the treats in something that has to be ripped off, etc. If your bird is highly skilled you can progress to tricky foraging toys.
There's a bit of a description at
Prevent Bird Boredom and you might be able to find more if you go searching for it.