Save the Date Cards

I've decided to adapt the beer mat calender idea for my save the date cards. This is my proto-type! (I've blanked out the personal details!) I really like the idea, but am worried that as I'm sending these out October time they might get lost before January! (They have the magnet so could be stuck on the fridge!)

I'm hoping to get either a monogram (L&R) for the front top or a little saying, will be scouring the internet for something suitable!