I didn't want to be plain and boring and just number the tables, so our tables are going to be named after places we've traveled to together. We've been on two cruises together so that helped give us enough names for all the tables.
I designed each card in Photoshop with the location name, a photo of us at that location, and our monogram. I'll print them on cardstock or 5x7 photo paper. Then I'll print our menu on another piece of cardstock (or 5x7 photo paper) and put it behind the table name card.
I'm using chrome plated table number holders to place them on the tables. I found a bride on Craigslist who was selling 18 for $15. Score.