Brigham Young
Did he design the magic underwear?
I think one of many wives did.
Or maybe he got the pattern from the golden plates that are really just parts of the Egyptian book of the dead - how to make a mummy.
It did didn’t come the parts of the KJV Bible, or the bits from Shakespeare or the novel he plagiarized.
Brigham young was the greatest con man of all time. Only L.Ron Hubbard is even close to being his peer
You mean the inner clothing that some wear as a sign of temple of covenants made to God? It would be wonderful though if there was a magic hat... then you could put it on and actually have a brain.