Nicknames

So many blogs have adorable names for the children appearing within. Are these names that they use in everyday life? Did they think and think about what the names would be? Trying them out in their minds before putting them in print? Is it really a big danger to use your children's actual names online? I have always used my son's first initial, but I think out of respect for his privacy. Is this what motivates others, too?
So, I'm considering what I could call D instead of D. I hate DS, DH, DD. Those gross me out for some reason. They seem so artificial or something.
I could call him Dreamer since he daydreams all day about being a rock star and having a mansion, riding around in limos and having bodyguards. On the other hand, it makes him sound like he arrived arrived from fairyland on the back of a pink unicorn.
He could be Money. Again because he dreams of having it, despite complete lack of the skills to manage it. That, though, conjures up thoughts of "ghetto" stereotypes.
He could be Chris, because when we first talked about him changing his name when he got adopted, he said he would like the name Chris Brown like the singer. We all know the direction Chris Brown has been taking lately.
What about Cupcake? He is very sweet and cute. He is not, thankfully, covered in frosting with sprinkles.
How about Prince? His therapist always tells him that if he wants to be treated like a prince, he better treat his mom like a queen. Prince reminds me either of some pampered pooch or the purple one. Neither appropriate choices for my son.
The most likely possibility is Sunny or Sonny. He is warm and brings so much brightness to my life. He has a million watt smile. He enjoys being a son and being referred to as someone's son. And that has always been his "dog name" when he acts like he is a dog (not really as frequent an occurance these days).
I'll just stick with D, I suppose. It would seem weird to change it now. However, I do enjoy seeing the names others come up with for the members of their families. I am assuming they are infinitely more creative than I am, and that is something I can admire without being a wannabe ;)