We don't, but the idea of a chalkboard or moveable type message board for menus is appealing and fun. Even when (especially when?) there are letters missing, as on Michele's board here, and creative spellings and descriptions are the order of the day.
• See Michele's original post here: A Silly Thing That I Do
We couldn't find any boards as cute as Michele's on eBay, but here are a few, still, that might be interesting.
eBay Scavenger: Vintage Menu Boards
• NEW CHANGEABLE LETTER MESSAGE MENU BOARD PRICE SIGN
• 1970s Pepsi menu board and advertising sign
• BROASTER FOODS MENU BOARD
• Menu Board - We're Open!