Well I recently created a painted mason jar idea board! Hometalk is a little like Pinterest but for Home and Garden projects. Submit your posts (you don't have to have a blog to do so) and create boards for your favorite things. If you have questions about how to build something, decorate, etc..you can ask the hometalk community.
I collected 20 of my favorite Painted Mason Jars Ideas in my board. To see all the sources for these go to my board here.
You can see my Polka Dot Mason Jar Tutorial here.
To see more Mason Jars Ideas, check out these projects as well: