Rather than focussing on purchased toys I think you can explore toys around you.
What I do is, any object wooden or paper which is not required by me ; I sterilise it (if possible or sun bath it) and give it to my bird to be chewed and destroyed.
In this way she/he is not bored of the same toy coz; it nearly changes every 1/2 days. Apart from this I have a climbing rope which she/he loves to play with.
If nothing is available I give it a branch of a tree or rope piece to play.
Just a suggestion for you to consider.