Cubine - This enjoyable pattern is full of contrast and depth. It can be done with straight or curved lines. Enjoy!
Tangle pattern: Sonnenband
These are really good because of the sizes and how it all fits together in a square just makes it look interesting
Refinery 29 on Behance - created via http://pinthemall.net
Doodle Art / doodles
Free downloadable template with patterns & designs for meditative drawing - designs by Jane Oliver
Betweed. Official Zentangle with variations. I love this tangle and it looks great when shaded.
Jenni Kayne RTW Spring 2013