This is my second attempt at an ironman helmet however ive learnt from my initial mistakes and thought i would share them so. . . . . . here we go.
Step 1 was to buy a poly head, this can be brought from amazon, ebay etc for around £5. I then covered it in plasticine and cling film. This will allow the helmet to be removed alot more easily from the head upon completion. I found that with my previous attempt it was very difficult to remove it which resulted in me breaking up the poly head.
Step 2, Purchase some "air drying clay" ive tried the cheaper stuff and its no good, it cracks and is difficult to work with when its set. I used DAS clay, its fantastic. Easy to work with when wet and dry.
I brought 2 packs at £6 each and this has made the whole helmet with some to spare incase i have a mishap and any color will do, whatever suits you.
I the rolled out the clay to a decent depth and started to layer it onto the head. Don't be too sparing with it, remember, this is the basic support structure to everything you're going to add after so it has to be strong.
You can blend it in by dipping your fingers in a bowl of water and smoothing the edges to merge.
Step 3. This is where it starts to get enjoyable. Once your head is completely dry draw a set of basic outlines on your clay so you can see which parts have to be built up. Once you've done this you can start by sticking chunks of clay onto the areas you want pronounced,
You have no need at this stage to be neat, really whack it on and build up the important parts and always make sure its symmetrical. Work the clay smooth with wet fingers until its a rough shape of Ironmans helmet.