I had already printed one of the designs where you attach two of the attachments to the vacuum:
https://www.thingiverse.com/thing:4649941
It worked great, but I still had two accessories that I wanted to attach to the wall. Everything I found that would fit the remaining two resulted in the brush head being squished, or the attachments were angled way out from the wall (which I didn't want). So I used the above as inspiration, along with this wall mounted version (https://www.printables.com/model/77192-dyson-v11v10v8v7-accessory-mountholder-zubehorhalt) and twisted one of the two so it would mount closer to the wall than some of the other designs.
Mounted using two #6 drywall screws and plastic countersink washers (into a stud). If you want to mount it upside down from how it is shown it will still work.
0.25 layer height
1mm wall thickness
20% infill
Supports used (support overhang angle was set to 40 degrees. This is higher than typical but needed for the upper slots).
The author remixed this model.