I think I wore out my Bell stroker hat though I have a veglia recollection of seeing it crumpled and stained in a box in the garage 5-10 years ago.
I also had one of Carl Shipman's stroker hats that he had made and sold through his "The Dirt Rider" mail-order business, along with the "Rap-on" fork covers and "The Boonie Book". Carl was a fellow member in the New Mexico Trials Association and his son raced MX in our local Albuquerque club (IIRC he had one of those hopeless gray-tank 125 Montesas).
40 years ago seems so far away.
cheers,
Michael