Gunga is my oldest sons because when he was a baby he made this noise all the time as he jabbered that sounded like he was saying gunga.
My daughter we call Babydoll. She's 18 months. My newest baby we have yet to pet name.
My eldest is Ariel and when she was small, we called her Ally. I still call her My Girl and Princess from time to time. My son was/is Chunky Monkey and my youngest (Rayelle) is Rayray, Princess, Baby Girl or Sunshine.
We have several!
Oldest is Thomas, and I tend to call him "Tomalom" DH calls him "Tambonious Minimus" (b/c he is named after his Papa, who's nickname is Tambo)
Daughter Reagan is Rayray, reagey, and my favorite, "Reagey reagey puddin' pie"
baby Jackson is JackJack, Smilin' Jack, CrackerJack, and Boom-jack-a-lacka.
Wow. They are going to need therapy someday aren't they?
Let's see, Jenna is (and has been from about 6 months old), Jenna Bean (added around Easter her first year), The Bean, Beaner, B. Although these days, Jenna (who is now 8), says "Mommy, please don't call me "B" in public!"
I started calling my son "football" while he was still in the NICU. No, I'm not some sports fanatic. I could only feed him in the football hold so I began calling him my little football. He informs me now that his name is not football, it's Jamie.
I also call him my little bugaboo or buggy (for short). When he's running around naked (which is all too frequent now days), I call him my naked mole rat. When he's climbing everything he's my little monkey.
I call my niece "My Little Tornado" because she can deconstruct the house in two seconds flat. What's so funny is that after I called her that in front of my sister-in-law she told me that her mother gave her the same nickname.