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In the case of CR ship on a planetary surface, the only option is for the CR ship to be flipped over by a rat so a limpet the limpets can access the underside of the hull. Suitable ships for the rats include: FDL, Conda, and the Python (for their wedged shape). The Krait MKII is unsuitable, as it was found to have zero collision on the front 'prongs'.
A CR ship resting upon a planet's surface with the landing gear down is entirely unable to be flipped. However, it is possible for a fully CR ship to activate their thruster launch sequence and 'hop' from the planet's surface briefly. Furthermore, it is possible for a CR ship to toggle disable their landing gear while midair, which would prevent prevents them from fully re-locking themselves on the planet's surface upon reconnecting with it. A CR ship landed in this fashion without landing gear is able to be flipped, although the limpets must be timed carefully as a nudge typically results in a continuous and uncontrollable spin. A second rat might be used to counteract the client's spin and leave them resting upside down.
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