Fresh
It's a nice idea, but needs more work. I think it has a few bugs, like when you pick up the material, say steel, and rollOver iron, you end up picking up iron instead of the steel... You should use on press, and not rollOver in my opinion.
Also the hammering could use some work on it too. It's totally unintuitive, and you should add a guide, or a crosshair to indicate the position where the hit will end up.
You could also add a bucket with water to cool down the object, and also, if you wait, the material should cool down by itself and the user should need to put it back into the fire...
Increasing the variety of objects that user could make would also, only be a plus.
Keep working on this, cuz it's the first movie I gave more than 0 today...