I ran into a student this weekend who was telling me about how she was trying to tangle while on vacation. But, she had trouble figuring out some patterns. Let's face it, some pattern step-outs are just missing a crucial bit of information! I told her I would send her some patterns I think are helpful to do when you don't want to be challenged by difficult patterns (yes I have those days too!!). Here are a couple I would suggest that I think are beautiful and helpful to do when you want to focus on the meditative part of zentangle. They are not on tangle patterns so I've put the step-outs below.
Static (and try close cousin - Nipa)
Other favorites are florz, rain, indy-rella, and mooka. Enjoy!