Plasticraft Yes I had one of these kits when I was young enough to sacrifice income from the tooth fairy in order to obtain objects that I could put into my moulds. But that was before the COSHH Regulations came in. Today my wife is facing dismissal from her school for doing an experiment with her class using the same chemicals to produce "amber" with dead insects inside. You can buy the resin and hardener on Amazon, but she didn't scroll down far enough to see where it said "not suitable for children". She only found out at the last minute that she needed to do a risk assessment, and could not do it to the required standard.
It would help us greatly if any of you can remember touching, or better still eating, the stuff and living to tell te tale.