I found these on Joggles.com, if you like doodling like I do, try these for fun instead. According to Joggles.com creating Zentangles is enjoyable and rewarding. It might seem daunting when you look at what appear to be complex patterns, but each is really just a set of steps. When you combine tangles is when the magic really happens. They also sell the products you need to help you create these wonderful designs.
More Zentangle Fun!