@Krisrath11
As to leather? The danger is how it was tanned. That's done by whoever you buy the leather from.
The issue is some folks that make toys for birds don't realize the danger. When I first got amazons I didn't know to ask the person who made the toy how the LEATHER THEY USED was tanned. If they don't know, don't buy that toy. Simple as that.
I would start your amazon with a piece or two of balsa, basswood, soft pine and maybe a piece of two of cardboard. That helps to show what she prefers.
MC became gloomy on me once. I had bought a lightweight toy for Secret and she didn't need it. I put it in his cage and WHAM! I realized then they really need something from time to time that they can DESTROY to make them feel good.