Simple model of a hat. Just the base mesh is included, of which you can see some wireframes in the previews. The poly count is 3722. The measures of the hole where the head fits are roughly 200mm long and 180 mm width, good for a smll head. The default measurement units I used when modelling it were milimeters, so you may need to scale it down.
Hope you like it, feel free to ask or suggest anything