As mentioned in another thread that was about something else entirely, the Special Olympics is having another Scarf Project this year where people make scarves for the winter Olympians. The scarves are made from extremely affordable Red Heart yarn, and the colors must be followed but the design is completely your own. Each state has their own dates or requirements so check the following link for either home or school information. If your state is not participating you could always send to another state.
http://www.scarvesforspecialolympics.org/states
If you'd like to learn to knit or crochet this would be a wonderful project and you'd be supporting individuals who will really appreciate it. With winter holidays coming up this could be a nice project to work on that is also giving to others. It could be a fun sisterhood to learn and make scarves, as well as philanthropy.
If you're an Alpha Sigma Alpha or on a campus with a chapter this would be a different way to support their national philanthropy, and even if you aren't crafty you could buy yarn, knitting needles, crochet hooks, or donate for postage.