I needed some lead balls for using in a homemade ball mill and they are too expensive to buy and I had some lead kicking around in the shed so I figured I would cast my own.
At this point it is worth noting that lead is poisonous so be careful.
you can cast pewter in the same method as I have shown for the lead.
Step 1: What you will need
some lead, I used roofing lead off cuts
plaster or other casting media
non-drying modelling clay
old tin can
biscuit tin or somewhere to put scrap molten lead
an old teaspoon
long handle pliers
1 x G clamps
a shallow muffin tin or somewhere to put excess molten lead
hacksaw or tin snips to cut off excess lead
old scissors for cutting lead