Here is a toasty warm hat guaranteed not to itch, ever. The inside is knitted with a vegetable yarn (cotton, soya or bamboo) while the outside is pure wool, in the middle you'll get a layer of warm air, without having to knit it.
The other two layers you'll have to knit, but it is done in no time and in one piece, beginning at the top of the inner layer and finishing at the top outside. The wavy pattern is easy, quick and fun, and would work in many color combinations. In the pattern there are two versions, depending on your color combination one might work better than other.
It is called fungi because they have been sprouting without effort this autumn.
And on Barnaby's head:
The other hat ended up on my Dad, pics of that coming soon.