Aluminum parts and ingots

When we look around we can see aluminum all over the place casted into different objects that we use daily. I took a few images of aluminum parts that I melted in my foundry and turned them into aluminum ingots. I will re-use the ingots for my sand castnig projects. I also separate the aluminum alloys and mark on the ingots what object it was before.
In my images I melted nut cracker, lock parts, cooker parts, door handles, tap handles,tripod legs, scotter parts (resize to fit into the crucible), aluminun brackets, toy car, glasses stand , toilet hinges, wine bottle cork and ladder parts. (Some parts in this images are pot metal)
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 The best aluminum alloys to re-use again for sand casting are probably parts such as car pistons, engine head, transmission bell housing etc'.
In my image you can see a piston that I melted into ingots, to starting  its new "life cycle".