Wire-threaded picture frame wall hanger

When it came to hanging my many pictures in the hallway, I didn't want to punch nails all the way down my wall. So, I just used one anchor point at the very top and used a piece of wire (one of the strands from a CAT5E cable) and made these pieces to hang them serially, top to bottom, all the way to the floor.

Just thread the wire through the 3D printed hanger, making sure it goes down at least one of the circular channels before coming out the bottom end. For the last picture at the bottom