A back spacer to the original model of 5mm so that the bigger attachments will fit and not rub against the wall.
I printed with the same PLA material and just put on the back of the original model and hung it.
The author remixed this model.
This model was awesome and printed well, the only problem is for the bigger attachments it's standoff on the wall was just a little short, so the attachments either rub the wall or wouldn't fit. Instead of reprinting and trying to change the model, I just modeled a spacer of 5mm on the back.