Just watched Elon's video on How Not to Land an Orbital Rocket Booster (ORB), and I just look at that and wonder why they don't build a large metal cylindrical cage on the landing platform so if it falls the (padded) rim of the cage will keep it propped up. The cylindrical cage could even be telescopic and motorized, so there is no fear of accidentally tapping the rim in the landing process, then, once it's in the center, engage the motorized telescopic cylindrical cage to expand up to capture the ORB safely.
Another idea, inspired from the net idea here, would be instead of a net, just two clotheslines,
----- ----- <--- wires | | | | | | | | <--- poles | | | |,
on either side of the landing area, and then when the rocket's in the landing area, clasp the two wires around the circumference of the rocket.