I've always made all my own sinkers. Good place to "get rid of" questionable alloys.
I'm looking for a diamond mackerel jig mold (1/3 and 1/2 ounce) if anyone has one, PM me. I haven't even found a mold maker of the type I want. I did see one once, at a CT tackle shop on the Thames River in the '80's but, I balked at the $50 price. When I regained my sanity, I went back and it was gone.