I have a toy that the birds and I love. It is the about the size of a portable phone, a bit shorter. It has 9 buttons and each makes a sound. Sirens and honking and others. Problem is, I trusted one of the birds to have it in the cage and now the buttons don't poke out any more. Still works though.
We also have a windup child's music box. They like it, too, but only Mama is allowed to touch it. I think the music box is a brand name but the other was a dime store find.
Have you tried the triangular shaped music boxes that hang from a chain and have a button to push? You can buy many different songs for them. My birds never learned to push the button so that was wasted dollars.
I used a skinny tall white medicine bottle, put in two pebbles and glued the top shut. Nice rattle-y toy. Also a hand cream jar done the same way. Patti conure tried to hatch it.
I had to take it away from her. She needed to hatch it so badly that she was not eating enough.
Annie