I have a real soft spot for this name because it makes me think of a former poster from the site that I always admired.
I often thought
Dolly could be a cute nickname for
Dolores, but if
Dolly works for
Dorothy, well the sky's the limit. Any Do- name would work.
Gwendolyn is a unique idea, I like that, although it would be tough to discourage people from using
Gwen, you'd have to accept that would happen. Eudolie is a name I've not heard before, that's neat!
If
Dolly works by itself for
Dolly Parton, I don't see why it wouldn't work on its own for other people.