We had a great day with models yesterday. You start with a clay model such as this and at the end up with a fully working animation model.
Having seen and even used latex for years, I had never actually been involved in making it, from first principles. It is amazing stuff to work with, and very very precise to make. So precise that the instructions from GM Form require a certain model of Sunbeam mixmaster – so you can mix it with exactly the right settings, mix 7 for 10 mins, mix at 4 for an additional 3 mins etc. And given how much the ammonia comes off during the mixing stage, I may not need to do it very often, even with the extraction fans, feel sorry for anyone who has to been in complex latex applications daily.

Still it is great fun to actually bake a mould and pop the latex figure complete with animation armature, it is the birth of creative stop frame animation process.