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Any matte white tape (ex: painter's tape) should do the trick. You don't want a reflective tape because it receives the laser beam from the LiDAR and disperses it, so the LiDAR has a hard time reading the return beam and calculating the ToF.

An other option would be to use some type marker (ArUco, ChArUco, Alvar) with a camera to locate the docking station using computer vision.

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