When I bought my Zutter binding machine, I joined a Yahoo group about mini books. They host a lot of swaps, most of which I miss, as I'm generally dreadful when it comes to keeping deadlines. However, one of the members came up with the idea of a zentangle postcard swap, which intrigued me enough to want to join, so I did.
I did a bunch of looking around on the web on zentangles (and cannot believe how much more information is out there compared to a few years ago) and come across some ideas that interested me. One in particular was using a stamped face and zentangling around it. Here's my take, using a partial vector face (the eyes, nose, mouth, chin, shoulder and basic hairline). I chopped of two centimetres of art on the right hand side, as it didn't look right. Not the best, but not the worst either.