I purchased some Peter Pan yarn in a yarn shop. I made some beautiful booties with it and it was perfect for baby items. I def recommend this yarn and it is not expensive either!
They have many different colors! Hope this helps 
smileysyarn dot com often sells Peter Pan yarn. I like their service, though you have to buy a lot to make the shipping not too much per skein.
I typed that in but got a different site. I found it here though