Here’s a small update. I got a gallon of resin in and started to cast these today. The resin I used was Smooth-Cast 320. For the green and red ones, I used the Smooth-Cast 325 which is amber and added the color to it.
I ran into some problems with air bubbles. I had the same problem on the colored ones. I had to sand and fill parts of them. Once there painted, you won’t be able to see it but the clean-up was pretty time intensive.