At this point I should say it has only taken me 22 years to realise I need aforementioned dish - bless, sometimes it takes a while for me to catch up!
Rizzi at ThermoMorph sent me a tub "for freeeee!" (Bedtime Stories anyone? No - never mind, actually quite a sweet funny film though)
The good news - As it cools again it hardens so you don't need to bake it or cure it. If you go wrong you simple heat it up again and have another go - nothing is wasted.
The bad news - As it cools again it hardens so you have to be pretty quick with it.
Once set it's a bit like those white plastic chopping boards in feel and texture. In the course of my experiments I discovered I could heat it up with my hot air gun (that I use with embossing powder normally) I found this much easier than hot water but it's not essential.
I heated about 2 tablespoons of the ThermoMorph pellets for each dish I made and used a shallow metal dish as a mould. This dish is actually part of my spoon rest that lives next to the cooker, it was just the right size for this.
First I tried rolling it with a rolling pin and cutting it out using cookie cutters. It kept setting before I was ready and I had to keep reheating it, however I was able to cut a flower shape.