After some brainstorming, we came up with some great ideas. Alexander found a box and created his calendar for Sophia to look like a Christmas gift. Each day she opens a little door he cut from the box.
Sophia used felt and sewed a hanging calendar for Alexander. So far they have opened several pieces of chocolate candy, tiny ornaments for the trees in their rooms, bells, and a coupon from Alexander for a free night of washing dishes. As they got more involved in making their calendars, the ideas for each other became more individual and fun!
My poor camera is old and tired. I will have to try again on this photo.