you can buy on alie express a special oven for 150 $ then you buy a mold of graphite of lingots then it comes the recycle part. in some countrys illegal so take care. just pick metals like:
1.Gold 2.silver 3.iron. 4.copper 5.aluminium 6. tin
there are a lot of money waiting for us to pick it up in the street so just do it. pick some cages clasify the metals. make lingots and sell online and locally :)
have a great weeck
BONUS:
you can do the same with plastic as all the 3D printers use it and there are methods to make it thread and sell it aswell ;)
please if you can consider let a propine.
Cryptoanonymous.