Doodles with intent sounds like a signature line to me but that is what Zentangles are. If you have not discovered this drawing fad just google them. That said I think they are fun a stress free way to introduce drawing and it is relaxing create patterns
I found this Video which I thought readers would enjoy.
I was poking about looking at zentangles as in the 4th week of the GIMP class I wanted to find an exercise that enabled people to explore the drawing tools in GIMP. I wanted something that was stress free but enabled people to explore the different brushes etc without turning them into a nervous wreck.
So I have adapted zentangles into an exercise (If you are not sure what I am talking about details about my GIMP for Textile Designers class is here) I have not called them Zentangles because I am not sure they are anymore as I have taken them in a different direction. More than a simple doodle, I have introduced using masks and layers alongside using the brushes in the program but hopefully I have managed to teach these tools in GIMP and keep it fun.
Anyway the exercise for the course is long since designed but I have become fascinated with these doodles with intent and the delight people obviously have in making patterns. Embroiderers only have to look at ethnic embroidery around the globe to see people of all races embrace pattern and pattern making.
Zentangle is a term coined and marketed by Rick Roberts and Maria Thomas. As you can see the key idea behind it is doodling with the intention of building areas of pattern. If you want to read more about it you can check out their blog called Blog Zentangle
I found this resource site which covers how to create a zentangle the regular way with pen and paper. Anyway check them out if you have not done so before and try doing one they are fun!