There have been a couple of times in the past when I've needed a couple of bungee points on my R1250GS - finally cracked it with a couple of Wunderlich tie-down loops from Nippy Normans. These nicely bolt on using the fixing points for the rear rack, all I did was replace the standard screws with some 30mm long ones and a couple of lock nuts and job done. Quite discrete as well IMO.