Harry Potter Calendar. Backgrounds are the 4 house colors. Includes: Days of the Week, Months, 31 Days, and Month Banners for a Birthday Banner. I print these and laminate them. I can Velcro them to my walls! For the Birthday Banner, I laminate them and them them on a string. Then I write my students’ birthdays with a Vis-a-vis marker so I can reuse it!