Id' say it like "Bonnie Face" and it's not a pleasent sound. I love Bonnie, but the "face" tacked on at the end makes it unpleasent in my opinion. It seems like an insult little kids would call each other... "You're a stupid face!" "Yah, well, you're a BONNIE FACE! So there!" Know what I mean?
Just doesn't seem like a name to me.
Julia Keelan
"I don't mean to be rude-" he began in a tone that threatened rudeness in every syllable.
"-yet, sadly, accidental rudeness occurs alarmingly often."
~ From Harry Potter and The Half Blood Prince by J.K. Rowling. Vernon Dursley to Albus Dumbledore.