Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5394407.

Just a simple attachment for a vacuum. I like this type of attachment for getting stuff stuck in carpet but mine did not come with one so I designed one.

The tube part that attaches to the vacuum has an internal diameter of 32mm and an external diameter of 36mm. It should be able to be scaled to fit most if not all vacuums. I recommend printing in the orientation shown in the Cura screenshot standing up with supports for those sides. I also recommend 100% infill just to make sure it's sturdy, although frankly there is not much space for infill to begin with.