Something I made for Sanders recently[0] which has gotten a little traction on r/SandersForPresident[1], a simple website backed by the NYS electoral rolls. It generates self-mailing fliers to voters who are not registered Democrat informing them that they have until this Friday to register if they want to vote in the 2016 NYS Dem primary. The fliers try to make it as easy as possible for the recipient to register by providing the form and a way to mail it back to their county Board of Elections. Volunteers can go to the website to generate and mail fliers for a unique set of at-risk voters.
Critical feedback is welcome. I know just walking through a CSV file and using python's HTTPServer is terrible, though. :-)
If anyone knows about setting up full-service bulk mailing with USPS, I'd love some help getting started. It's probably too late for this particular project, but I think this distributed approach to mass mailing potentially has a lot of promise.
[0] http://nysmailing.xyz/ https://github.com/coventry/nysmailing
[1] https://www.google.com/search?q=site%3Areddit.com+nysmailing...