I have A LOT of christmas ornaments. This would be totally socially acceptable to do as something other than tree-shaped for a year-round decoration, right? (How-To: Christmas Tree Ornament Mobile from Not Martha)
Help your little ones make a Beaded Safety Pin Mini Christmas Tree to use as an ornament or as a key chain. Crafts for Christmas that can be brought to school? Their buds will want to make homemade Christmas ornaments.