Going to invest in proper mold making compound. While the silicone caulking method worked, I did not get a smooth shiny surface on my parts. I attribute that to the caulking having corn starch in it. This would be good for solid parts but not transparent. They did come out good otherwise. Need to clean up the edges where it ran over. I'll call these Just a test and do another set in a "real" mold.
I think for the next set though I'll add a drop or two of red tint to my amber to get a richer color.