I make from polymer clay, the eyes are glass. I use two types of plastic, the main one is quite known under the brand name "fimo", the second little-known Japanese without a name, but later I will completely switch to it, as it becomes very strong after baking and cannot be broken (like real plastic), although quite toxic when baking.
Subsequently, I will sell this work. After the helmet will be made a scarf and stand. And then painted with acrylic.