Was wondering where did you purchase your props from?
It's always tricky knowing what's budgie sized, isn't it? If anyone wants some of these props, I'm happy to help you get them!
The little basket came from South Australian Bird Company - they've got some great kit. They'll sell & post to anyone in Australia, but they're not ready to sell online or to overseas. They have a large selection of toys and DIY toy parts which are great for budgies (I have tiny cups, maracas all sorts of things!). I grab their parrot foot toys which are about the right size for budgies. They also have the Zoo-Max toys (which are budgie sized) and a few nice play gyms and a "fitness centre: which comes with a barbell and a basketball ring.
The slinky I can get my hands on easily - they're from my local supermarket. The ball I use for fetch is actually one of those perch toys with the small balls that spins - I took the ball out of that, as most cat balls are too big. The bowling set I got from ebay and replaced the ball bearing with a small marble.
If you're interested in a basketball set like mine, I can have a hunt around and source the parts and put a couple together to post? Happy to do that!
Nokota said:
Toilet training!?
I heard that was impossible for budgies!
I think it's maybe just challenging because they go so often and have such fast metabolisms!
He's got the hang of "when I put you on the perch, if you go to the toilet now, I'll pick you up again"

I started by taking him out of the cage first thing, and putting him onto the perch until he's done it, then we go to having fun. As that's usually the first thing they do when they are uncovered in the morning, so it's easy to get the association happening.
Now we've associated the place with the action, I can keep the "potty perch" close at hand, and watch for the signs / times when he's due to go, then put him on the perch to do it - and with the previous association, he knows that if he goes, I'll pick him up again. So we're actually doing quite well
The aim is to get him so closely associating the perch with the action that he chooses to go there, rather than waiting for me to put him there and pick him up again. It's all a bit of an experiment. There's no cue words (so he doesn't hold it in), and he still uses his cage as usual.