Where did you get that hat?

I've been sent this link to a wonderful, if a little irreverent, post on the subject of ecclesiastical headgear. Having been known to wear a biretta on occasion, what is ridiculous after all? Some secular fashions also leave a lot to be desired, but chacun à son goût and all that ... at least in the Church we don't go in for tattoos. Now that would be something.
But I've always thought the most silly hat of all comes from the Anglican tradition, the Bishop Andrewes Cap *  - like a Christmas tree gone over to the dark side.

* Something which can't quite make up its mind as to whether it's a biretta or an academic cap - the classic Anglican dilemma.