This is some really simple Web Components code I hacked together, just so I could better understand how WC works. It mainly focuses on templates but also uses a little Shadow DOM.
The code is documented in both index.html here and scripts/main.js here, so you MIGHT have a enough info to start using the code right now. But for an in-depth look at the code, view this blog post here (blog post will be available on August 13th, 2014 at about 7 AM US Easter Standard Time).
-kdz