The first step was using a circle, applying some estrusions and cuts to create the hat's base shape.
step 2 of 6
Take the base shape of hat and applyed a lattice modifier to reach the final shape of hat.
step 3 of 6
The support structure was created from the tubes.
step 4 of 6
The belt was made ​​from a tube with some cuts. The link with the structure was made ​​with some extrusions.
step 5 of 6
The sky texture was created using a site Blender Texture CD. Was applied to the world environment and rendering was made ​​using ambient occlusion with factor 0.57.