I think it works as a nickname for a character or real person. It's a bit of a stretch, but it could work as a nickname for
Antiope. Maybe
Theophila or
Tiffany /
Tiphanie. If some Elizabeths can go by Biz or Diz and Edwards can go by
Ned, I think that a
Tiffany could go by Tippy instead of Tiffy.
Tiffany is NMS, but I think it could work for certain characters depending on their personalities and such.
Antigone "Tiggy" is neat.
Another name that I think is neat for a character is
Zipporah "Zippy."