I don't know if presently possible, but you could edit torrc config file to choose any exit nodes you want, including private exit nodes you set up yourself fol

I don't know if presently possible, but you could edit torrc config file to choose any exit nodes you want, including private exit nodes you set up yourself following the torservers.net guide. Haven't used tor in a while but the browser bundle directory torrc file is/was freely editable.