Seeing as ofo is well and truly dead everywhere but China now, I felt comfortable letting the cat out of the bag about the specific tools used to service ofo's US-market bikes (and only ofo - LimeBike uses different tools, so this shouldn't have any affect on those).
This may benefit a few charities and bike shops, seeing as a fair amount of them are around in ofo's wake.
There is one specific socket that I have
no idea what it is, where to get it, or if it's truly a bespoke tool, so if anyone wants to chime in, I'm all ears.
How to fix an ofo dockless bicycle - The Bike Share Museum
Hope it's of use. Keep in mind that a lot of these bicycles use Nexus or Sturmey hubs, and 6V generators, so even if the frames aren't of interest, there are some interesting parts that can be repurposed on these before they go to scrap.
-Kurt