I have a friend who is about as obsessed with weird opera stagings as I am, and we assembled a ‘Salzburg productions of Mozart operas’ bingo. Because we are low tech like that, we have foregone the square grid. Because grids are, well, sort of obvious, right?
Burger King crown
young boys intended to resemble kouroi
cannibalism (either overt or implied)
[middle square: groping!]
modern plumbing fixtures
Obviously there are no prizes if you win, but you have the consolation of taking pleasure in the exquisitely obscure — which is worth something, right?