I finished the qiviut hat a few days ago. It was well received but it took some cajoling to get a modelled photo.
I spun the yarn myself from fibre that was a gift from a friend. Qiviut fibre (the ultra soft undercoat of a musk ox) is very hard to come by and commercially spun qiviut sells for $70 - $80 per ounce! This hat, with its folded up brim, weighs about 2 ounces. A rare and pricey hat for a very deserving man.