And there's the deflection ! 
You never deflect do you Faithlilly? Bless you.
Here's the answer to your question.
Yes. I have heard of children being stolen to order. It happens in China and India on a not infrequent basis. I understand that paedophile rings operate on the basis that children with specific attributes that appeal to their members are targeted by their assailants, though I have to admit it's not my field of expertise so can't give you specifics, sorry,
Here is a rather harrowing account of a child being hunted and targetted specifically for the way he looked by a pair of paedophiles. I doubt he was exceptionally out of the ordinary, and you could well ask, what made him so special. You'll no doubt enjoy the article as it's by one of your favourite authors.
http://www.nickdavies.net/1995/04/01/the-murder-of-daniel-handley-three-features/I trust this answer has been comprehensive enough for you, feel free to ask any more questions and rest assured I will do my best to provide you with the information you require.
I would also ask you to please remember the fact that I will always answer your queries and would ask please if you would kindly do the courtesy of answering all mine in future, Many thanks in advance for your cooperation in this matter.