This simple cover slips over the base side of a Fanatec QR2 connector. As shown, it was printed with fuzzy skin and a 2nd color for the Fanatec logo to match the back of my base and my F1 wheel color, but both of those are, obviously, optional. There is nothing holding it on, it's just a friction fit, but it fits pretty well… which means it's also very easy to remove.
It requires printing in the orientation shown since the logo is raised, so I used organic supports with the default Prusa Slicer settings and they worked great.
It also fits well in only 1 orientation so it's useful for making sure your QR2 is right-side-up before trying to attach a wheel.
The author marked this model as their own original creation.