Hang a bottle upside down with treats in the top and fill with newspaper and shredded paper
Bird play gym! So fun for a special enrichment day. The frame could be taken apart for storage and even resued woth
All About Cockatoos - Hand Made Toys
Bottle cap toy; extremely easy to make and again can be made into a foraging toy by hiding treats between the caps!
how to make bird toys for parrots - Google Search
Bottles with beads parrot toy...... Interesting idea that has so many possibilities. Could vary the contents of the bottles and the bottles themselves.
A variation of the shish ka bob. For many more idea's: https://www.facebook.com/PamperedParrot
Straw Ball. But I'm not sure of the polished rope
Foraging activity. Hang a basket filled with tiny balls. Throw in some assorted treats and let the search begin.