Massachusetts and other New England states has had lead restrictions on lead use for weights and jigs for a few years now. There's information here for not only lure builders who want to "get the lead out," but those who are thinking about getting into jig making, lead or alloy.
The Lee Production Pot IV is the standard of the industry used by the hobbyist. It holds 10 lbs. of molten metal and features adjustable heat control. Metal is dispensed from the bottom of the pot. This melter is available from: barlowstackle.com and lurepartsonline.com.
These companies also carry molds, hooks, paint, skirts - just about everything you need for lure making.
Put the goggles on before you plug the pot in. The container from a turkey pot pie catches most drips but there will be the occasional splatter that escapes. Do not forget to use eye protection.
The alloy I've settled on melts at 395º. A "3" setting works well.
Have you been wondering about the screwdriver in the first photo? It fits the slot in the top of the valve rod and is used to adjust dripping. Some amount is to be expected with this mechanism because the rod moves a bit with each lift of the handle.
One pound ingots of 88% bismuth and 12% tin are available from Rotometals,Inc., a long-established company in California. Here'a a link to this alloy which will take enough heat without melting to fully cure powder paint:
https://www.rotometals.com/lead-free-bullet-casting-alloy-bismuth-based/
Read the specs and reviews.
In 2012, I opened the mold after my first pour with a bismuth based alloy. I admired the fully formed jig for a while and then, no matter how much I yanked and cursed, I could not get the jig out! What I didn't know at the time was that bismuth is one of the very few substances found on our planet that expands as it cools. And this is why you need Drop Out mold release.
https://www.amazon.com/Frankford-Arsenal-Aerosol-Release-Reloading/dp/B00EVNSFKY
Sprayed with Drop Out, hook and keeper in place, you are now ready to pour. You can make about 4 dozen pours before you need to let the mold cool down and recoat with release.
Filed and ready for paint.