Last year I put together a post with resources for el Día de los Reyes Magos. That page continues to be updated as I find new products, activities, and lessons on the subject. I've recently erased the events that were listed at the bottom, and have added new crafts, activities, etc. More will be added over the next few days, too, so be sure to check it frequently.
I also discovered several new Spanish-language books that I'm happy to share with you here. Some of them are hard to find, or are available in limited quantities, so if you're interested in any of them, don't wait! You can find all of them on Amazon.com or in the Latin Baby Book Club's online bookshop.
Los Reyes Magos llegan de noche... by Manuel Fernandez Juncos and Braulio Dueno Colon, illustrated by Marjorie Ann Velez. (Shown above.) Good for elementary students, this set includes a CD with musical accompaniment.
Los reyes magos de Oriente by Lluis Farre adapted by Carmen Gil and illustrated by Merce Canals. With rhyming text and lively illustrations, this pop-up book presents the voyage of the three kings to Bethlehem to worship baby Jesus.