It is the plastic foot that moves the sunroof mechanism used in VW vehicles. It can be done in the other model by mirroring.3d printing can be done, it has been tried, it fits perfectly. There are 2 in a sunroof window. They are original dimensions.
STL (Stereolithography, filesize: 390 KB), SLDPRT (SolidWorks, filesize: 582 KB)