I'm volunteering in a local high school, helping out with a few CS classes. My main focus is an introductory Python class. I've put together a few projects for the students in that class:

http://blog.jrheard.com/watercolorbot

http://blog.jrheard.com/python/passwords

http://jrheard.com/blog-staging/python/caesar.html

I'm excited to see how the rest of this school year goes - by the end of it, I'll have a suite of projects that beginners to Python might find very useful!