Just came across this in a biography of Robert Louis Stevenson :
" The Pall Mall Gazette advertised "The Body Snatcher" at Xmas 1884, by sending six sandwich-board men around the streets of London...wearing coffin-shaped boards and plaster skulls specially made by a theatre property company - until the police "suppressed the nuisance."
Sounds just like a game with different factions of police, decoy sandwich-board men, zombie sandwich-board-men, vampire hunters etc...
Now does anybody make sandwich board-men
