Have a Bake Sale
The chilly weather and holiday spirit always has everyone craving some delicious baked goods. Make some brownies, breads, candied popcorn or hot-cocoa-in-a-bag and organize a bake sale at your school, community center, or church. Instead of pocketing the dough, donate all the money to a charity of your child's choice. Help your little activist (and his friends, if they're involved) choose a charity he feels a connection with, and have him tell customers all about it as they're browsing the table.