A tape holder I made in order to store them. It bolts to the wall using a 4mm in diameter of the thread screw with the head wide as much as 10mm. the length of the screw should be greater than 8mm (look at the last photo for reference. As for the rods used to put them together, I used some 5mm threaded rods, the holes have a diameter of 5.5mm but printer tolerances might affect that.
The author marked this model as their own original creation.