I just came across this article on CNN this morning about ways to help those in Newtown if you can't give financially. I thought one was really cool. They are wanting the kids to be greeted by a winter wonderland when they return to school in January so they're asking people to make snowflakes and send them to Connecticut. I thought it was an awesome way to help and to get kids involved, especially if they've been wanting to help (DH has a cousin whose son is always looking for ways to help people). I think it'd also be a good way to just spend time with the kids.
Here's the link with the address and the other ways to help.
http://www.hlntv.com/article/2012/12/18/ways-you-can-help-newtown-community?hpt=hp_t1