Michelin How Do I Make A Michelin Tire Man?

How do I make a Michelin Tire Man? - michelin

I have to create before, with a Michelin tire man for a volume of projects. I find it hard to imagine what equipment to use in order to determine MTM structure. Clay is defective because it hard and crumbling. Basically I'm looking for a material that shows exactly the brilliance and it can be easily built. Each sugesst would be appreciated.