I was just coming in to point one or two of those out. (I'd also argue that "wanderers" and "rovers" aren't actually that random - they speak to the club's history, even if they haven't actually "wandered" or "roved" for probably a hundred years or so!)

Interesting to note, most of the placeless-teams are either in Scotland or in Wales. The only ones I can come up with for England are Forrest Green Rover (who play at Nailsworth) and the Met Police and neither of them are exactly giants of the (non)league!