I don't like the -b, so I prefer the variant
Zenovia.
I think it's rather cool but I wouldn't be "brave" enough to actually use it on a child. Your "supermarket test" is just brilliant :-D
But no, I really can't see myself calling "
Zenovia, put that back! Now!" ;-)
Same with
Genoveva / Genovefa. It's cool in theory, but using it for real? Hmmmm... no.