This was quite fun to do, a very open brief to make a dragon head
Your first question should be: Do I need a mould? Don’t get me wrong, but for example when you’re making maquettes or one-offs, then you might not need to mould at all.
Here is a little summary of the materials I use most - how they are used and what to keep in mind when using them.
Quite often I find myself making small block moulds – simply building some walls around the piece I want to mould and then flooding the whole box with silicone. This procedure is extremely quick and most of the times suitable for reproducing a small number of items.
I finally found the link to the TV-ad for which I made the silicone frogs