The smell was in the silicone. I didn't give it a chance to go away. I just tossed the mold. All the others using this technique assure me that the smell will go away.

Basically you have two options for a two piece mold. You can use plaster or the silicone. The silicone seems to be the way to go. Just read that same thread several times over and experiment with some round worms. Something cheap. Make sure to coat the lure and whatever you use for keyways (like marbles) with vasoline before pushing them into the silicone. Then when the first half is dry, remove the keyways, coat mold with vasoline and add the 2nd half of the silicone over the lure and existing mold. Let it all dry under a 60 or 75 watt bulb for 5 or 6 hours. Don't forget to make a spru hole. You could use a straw. That's the hole that you will pour the plastic into when the 2 pieces are together.

If you want to use plaster, read the threads from "Chirmy" for about the last month and one of them will break it down real, real good. I just can't remember the name of the post.

Correction to above: use this link for the plaster
http://www.tacklemaking.com/forums/viewtopic.php?t=2832&start=30