Bud, Egg Roll, and ???

When I was pregnant with Adrian, she was shy and we couldn't even tell if she was a boy or a girl. So, we called her Bud. (That was also the name of our cat and our fish).

When I was pregnant with Cole, we didn't decide his name until the day he was born. So, Adrian and her friends decided to call him Egg Roll.

Now we have the delimma of nicknaming the new little girl. Our agency guesses that it will be between 6-7 months before we receive our referral and find out any information. So, we need a name to call her in the meantime. Any suggestions??