Birthday Graph

Birthdays are ALWAYS a topic of interest with children.  Here's how I display birthdays in my classroom:

I used to just write them down on a chart from a local teacher's store, but I switched to a "graph" two years ago.  It looks more appealing and lessons can even be taught with it.  One to one correspondence and teaching the terms more than or fewer than with comparisons are helpful with this graph.  I always keep a few blank cupcakes in my desk so I can quickly add that new student I'll likely get.  How do you display birthdays in your classroom?