Birthday Calendar

I have been looking for away to display the students birthday, without having to make another BB. I saw this idea in a kindergarten class, I'll try to get a picture.

You take the months of the year from your calendar and display them across the top of the BB that you use for your calendar area. Then underneath of each month you use a cutout of something birthdayish and write the students name and birthday on each. Each month when you change your calendar, to reflect the appropriate month, you also add those cutouts to the body of the calendar to remind everyone of the birthdays.