Hey, I found this really awesome Etsy listing at https://www.etsy.com/listing/187304692/class-birthdays-calendar-teacher
A great visual for the birthday board!
Birthday Calendars Family Birthdays Family Birthday calendar Birthday Board
Classroom Birthday Board with Chalkboard Discs - Teacher Birthday Calendar Custom Wooden Sign- Ruler
Didi @ Relief Society: Birthday Cupcake Calendar/Board idea - Cute for Missionaries, Young Women, Primary, Relief Society and for all classr...
Kinder-Craze: A Kindergarten Blog: A Sweet and Simple Classroom Calendar
Birthday Boards FREE Shipping by sweetboards on Etsy
Run! Miss Nelson's Got the Camera: Bulletin Boards and WINNERS
Birthday cupcakes classroom chart :)
Cute DYI Birthday Board https://www.google.com/blank.html