Well, I told you Brit Gal Sara would know. And Laura was close but not specific.
If you've travelled through the south west of America, you'll see some fine specimens of this:
These hats cost a fortune and are usually treated very well by their owners. I have seen many a cowboy sitting on a plane with his hat protectively placed on the adjacent seat. (Given the price of airline tickets these days and the jammed-to-capacity flights, I doubt this still happens.)
According to the Orvis -Gifts for Men catalog, the hat carrier just slips over the seat - no installation required.. That would indeed be a blessing chez moi, as most things requiring installation either get leaned up against the would-be spot, never to be touched again, or end up with the Ball & Chain putting a fist through some wall or other. And the language!!! However, he hasn't lived in the south for decades and has no need of a vehicular hat carrier no matter how easy it is to install.
My main concern about this hat carrier is that it assumes all cowboys drive a pick-up with back seats. My father-in-law has a four seater pick-up (not sure why, but old habits die hard). However, the real pick-ups only have two seats in the front so I'm not sure where the hat would hang nor how the cowboy would get it there.
PS. It costs $59, and the hat itself (premium fur felt) costs just $98.
PPS. The clue in the title "tarnation" was obviously far too subtle. Many southerners here use alternative swear words, like tarnation and dad gammit (instead of god dammit).