Menu board? Specifically one of these kind, with cling letters. Sure, I'd probably have to buy extra letters, but god, I want this kind of sign to make it say dumb stuff all the time. Pointless statistics. Fees for absurd requests. Days since last party wipe.
@wildweasel in practice i find that moving the little plastic letters around is unfortunately quite rough on the fingertips, so i don’t change the text on my little sign very often…