I love nicknames, as I mentioned here. Olivia has picked up on my obsession and started calling Evangeline various names (because Evie isn't nickname enough...).
"I think we should call Evie "Evs."
She used "Evs" for a while and then shortened it still to "Ev."
She has given her a couple long nicknames, or terms of endearment.
"Ohhh, little Evskaroons! Look at your cute little toes! I could just eat them up!"
and
"Hi, little Pupskareeno! You're so cute!"  ("Pupskareeno" is an *obvious* variation of "Pup.")