This year, Brooke (co teacher) and I  guided our students to create their own calendar for the mothers and attach it to a clip board. The calendar started with May and went through to December. The clip boards were cheap, $2 each from Office Works. I wanted students to be creative and not just insert photos. To foster creative images they used these free sites:
Sketch io, The Art Zone, Be Funky , Keep Calm Omatic  and  Graffiti creator . Here are the publisher templates:
Calendar template sample BWoodman
Calendar template