First, Read with Detail the second Thread in the Amazon Forum found highlighted in light blue! Understanding Amazon Body Language. This is best read while sitting with or next to your Amazons. Read it softy aloud at least five times a day over several days. The goal is that they become use to your voice and you learn their basic body language. Once you know the basics at least as good as a second language and better if possible, you can slow the number of readings down.
Second, Read with Detail, the first Thread in the Amazon Forum also found highlighted in light blue! I Love Amazons - ... As above, also read it out loud to your Amazons. This one is your go to Thread as your relationship and interaction with your Amazons grow over the years ahead you. At least read it all, once. Then come back for updates as the needs arise.
So, what does this have to do with Foraging Toys. Frankly, nothing! That is due to you getting way out in front of yourself.
You have two very different Amazons! Amazons that come from very different areas of the Americas, thousands of miles of separation between their DNA base. They should not mate! And, to that point, you need to verify whether you have two males, two females or one of each. This is very important as you likely have them is the same cage.
An Avail Vet Visit in the very near future, yesterday would have been nice, that includes the DNA verification and a full Well Parrot examination including a full blood screen and gram stain. Also, a check for any illnesses that are common in your area.
Yup, it is going to be expensive, but living with an Amazon is expensive and two is just that much more expensive.
It is likely that these two have been just setting together for ages. Amazons of this age group are normally very active. Your's having little interest is a statement they have been stored in the cage for years with little to do! Getting them active begins after you determine their health status!
You will want your Avian Vet to provide you a clear understanding of the health of their heart and air-sacks, plus their other major organs. The detailed blood screen and examination will aid in that information.
Do not leave the Avian Vet Clinic without a copy of all the findings and determinations of the examination. You have a full right to this documents and it will be helpful for you in the future.
Once you have this in place, we can look at ways of getting your Amazons far more active.
Congratulations - Amazons Rule!