anyone come up with a 'creative' way to mount these to the rear?
I've only figured out how to do it with my folder, using a minoura space/swing grip, but I can't use the same solution with my other bikes because it's blocked by a saddle bag.

I had thoughts about using a lock block into the velcro straps on the saddle bag, but it didn't work out too well. There's a possiblity of mounting it to the chainstay, but it's lower than ideal. So, aside from mounting it to a rear rack, I'm out of ideas, so I will think up of some more ways to mount it to the rear.