In the spirit of SUGGESTION: Family market - Christmas pan-denominational but for a more liturgical crowd I would like to suggest that the O Antiphons be offered either in a time line format or a Advent house style format (use your imagination). Again the web and religious publishing houses have a variety of ideas to stimulate a Logos Biblical approach which needs to provide appropriate images and Bible text.
If Gabe wants, I'll make some suggestions more specifically oriented for the Orthodox and Eastern Rite with more icon orientation but I am suggesting the simple and familiar first.