What a romantic and zippy set!
How about:
Tabitha Kitty - lol, just saw it suggested - love the nn Tibby!
Odessa Madrigal - Odie, Dessie, Sassy
Eugénie Lovella - Génie, Janie
Lucinda Polly - Lulu, Cindy, Lolly
Felix Alaric - Felix, Lucky
Sylvan Octavius - Sil, Silvo
Ambrose Everett - Brose, Brosie, Bro, Ro
Sebastian Devereux - Seb, Bass, Bashy, Bastian