Q 630: I'm flushing out a Norse campaign setting, and am trying to figure the best way to represent a fylgia, or personal guardian spirit some people where thought to have (it was thought those born with a membrane on their head [the amniotic sac] would be blessed with a fylgia). The best ways within the rules to do this that I can find are via the Spirit Shaman's spirit companion, the Durthan's Telthor Companion, and the Hexblade's PHBII alternate class feature that replaces their familiar.
I like the Telthor option best (in the case of the Durthan, she gains a telthor as a companion that then must stay within one mile of her, rather than within one mile of the spot where it died), but would like to find a way to expand that to more characters. Is there any way anyone can think of, other than DM fiat, to achieve something like a Telthor (UE) or Spirit Animal (Frostburn) as a companion? Obtain familiar is not what I'm looking for.