One of the things you'll enjoy with this series is that you and your children will learn to recognize the Saints at Church by coloring their icons.
"My Synaxarion – Orthodox Coloring Books 1-12" is a set for children and adults alike.
Buy this Complete Orthodox Children's Perennial Calendar - get a 10% discount and Free Shipping (Media Mail)! It includes twelve A3-sized posters featuring a calendar and 196 stickers.