It's my favorite nn for
Isabel, and everybody forgets about it.
I don't think
Ibbie would work for
Isadora because there's no b in it. But It could work for maybe...
Ibolya,
Ingeborg?
OH unconventional nns are my specialty!
I'd use these in real life:
Margaret -
May, Maymie (or
Mae, Maemie,
Mamie... not sure on spellings)
James -
Jem,
JemmyAnne -
Nan,
Nanny, Nanw (Welsh)
Elizabeth -
Nell
Some others I like:
Abraham -
BramAb- boy's names -
AbbeyAlexander -
SashaAmelia -
MillieAugusta -
AggieBartholomew -
TollyBridget -
Bridie, which is unconventional these days in the US
Caroline - Caddie, Caro
Christopher -
Kit,
Christy,
TopherDorothy -
DodieEd- boy's names -
TeddyEdwin -
WynnEmanuel -
ManleyGenevieve -
Ginny,
EvieGeorgina -
NinaGregory -
RoryHarriet - Harryo
Henrietta -
Nettie,
Ettie,
EttaHonora -
NonieImogen - Idgie
John -
Jack, which is very rare these days (although I do know one)
Josephine - Sephie,
PosyKatherine -
KittyLawrence - Lawry, Law (someone mentioned this idea here a bit ago and I like it)
Lillian,
Liesel -
LallyLouise /
Louisa -
LilouMackenzie (m) -
MikeMagdalene -
MagdaMartha -
MartyNigel -
NyeOliver -
NollRamona -
RomyRobert -
RobinTallulah -
TullyTheodore -
Rory
And there are also some even more unconventional names that I like unconventional nns for, but I don't know of that would count when the name itself is so uncommon. Like...
Euphemia -
Eppie or
FemieFionnuala - Fia
Keziah -
KizzieEmlyn,
Llewellyn -
LynGwilym - Gwili
Magnolia -
Nola