Project Linus. The National organization supplies new, handmade blankets to children with serious medical conditions or children who were traumatized in some way. There are 371 chapters in the United States (if you aren't interested at this time, look up your local chapter and consider donating in your area!)
Right now, the Ravelers are discussing which of my free patterns they want to use, then a color scheme will be chosen and a plan made. If you are interested, please visit the Ravelry group. You'll need to be a Ravelry member to participate in this particular effort with my friends, but it's free.