Elizabeth has some crackers:
Liz is unlovely, and there's always
Bet,
Bette,
Betty ...
Give her some Greek relatives, use Dimitra and call her Dim.
I've always found
Tori to be way uglier than any
Vicky variant.
Frances could I suppose still become
Fanny.
If you do go for
Antonia or
Antoinette (perhaps named after Granddad
Tony) you might consider the truly OTT nn of Ant. Happens to
Antony men here in SA.