I found this activity on Pinterest and I thought it would be a great art activity that could also be integrated with social studies. After talking about families students could each take a paper hand home and have each family member decorate their hand. The hands would then be returned and turned into a small family tree to represent the student's family. This could also be used as a bulletin board where the main tree is composed of the hands of each student in the class and then the student's family trees are placed around the big tree.
http://pinterest.com/pin/215328425906180659/