Help Needed: material for targets

Im trying to construct some target for the site, want to set them up at like 20, 40 , 60 , 80 , 100 feet for zeroing and target practic, want to try and do simple torso sized metal target so you can hear the hits and a simple wooden fram or even just nail them to a post.

Just wanted to see if someone had access to anything we could use for this, i was thinking old cooking trays could be perfect for this.

I gave ozzie a pile of targets the last day, they are reinforced cardboard but there are enough reference points on them for zeroing....... any good?

old circular metal plates (like the ones you can get for candles) are ideal.
bit of wood dowling - bobs your uncle.

A lot of catering joints use heavy disposable tin foil platter trays......these can be obtained from any co op/musgraves,and are well hard enough for target practice.

good idea might have to try that one