Charging Stand for the Huawei Watch. The charging puck should fit snugly. The cable fits through the stand and emerges from the base.
UPDATE: I have made the fit a tiny bit more snug, because I received some comments that in some cases the fit of the charging puck was a bit too loose. This probably has to do with the tolerances of the Shapeways printers. While this can easily be fixed by sticking a narrow strip of tape around the puck, I updated the design so the fit should be better.