Hahaha well done
that took great willpower I'm sure
I would be reluctant to put a potted plant in the cage as the soil can cause some health problems if digested. I gather eucalyptus and other native Australian branches and create a rainforest every so often although I realise that's not an option for everyone depending on location. Perhaps you could buy a few large potted garden plants (small trees) that are safe for budgies and take clippings from them every so often to put inside the bird cage?