I'd imagine that making easily-printed menus that are weekday/weekend prices (only two ways to discriminate) would be the way to go immediately. One way to go

I'd imagine that making easily-printed menus that are weekday/weekend prices (only two ways to discriminate) would be the way to go immediately. One way to go that would be interesting is to remove the prices all together, and do a prix fixe menu, with the price variable depending on when you get there (have a chalkboard or a waiter tell you upon arrival). This would be low cost to implement, and certainly something worth investigating if you're a high-end restaurant.