Moleskine Muji Pen Insert v2.2

I wanted a way to clip my Muji Pen to my Moleskine (or compatible) notebook. The criteria is that the notebook should be able to be written on either side without being interrupted. At first I tried using a holder that clips to the outer binding, the but the strength required caused a bump under the pages. I eventually settled on a very thin sheet that extends out the side and has the pen clip. It even has a small relief hold for the notch in the Muji Pen clip. It's fairly minimal.

The "shee