Anyone who has ever felted will know how much felt shrinks. This means if I want to make a normal size hat I have to start off making it about three times bigger! So, I made a really big mould to start my hats off. And here it is covered with wool.
When it holds enough together I remove it from the big mould and continue felting without a mould. When I finish felting I put it on the real size mould to give it the final shape and size.