This year we are using a different set of guidelines for the Jesse Tree than we used in the past. So today's readings and symbols are new to us. Not new in that we don't know about Mary - but new in that we haven't used her on the tree before.
The readings are Genesis 3:14a, 15, 20 (God telling the snake that there would be enmity and the woman forevermore; Luke 1:26, 28, 31 and 38 (the annunciation); John 19:26-27 (Jesus on the cross telling John that Mary was his mother now) and Revelations 12:1-2, 17a ( a vision of a woman with a crown of stars).
The children are familiar with the story of the annunciation; but not familiar with Revelations - and I'm not sure if they are aware of John and Mary at the foot of the cross. Since I am posting this earlier in the day, we haven't actually done our tree yet today - so I don't know what interesting topics might come up in discussion.
Do you like our Mary? She's made from yarn and pipecleaners and cotton balls. The directions were in FamilyFun Magazine several years ago. (Good thing I saved it)