My daughter received a Knifty Knitter (or rather the Knit Quick - just like the Knifty Knitter) for her birthday. She has been busy, busy, busy knitting up hats for her baby dolls. She just turned 9 years old, and is able to complete the whole hat on her own -- the only thing I do is make her little "pom poms" for the top. She's actually finished 3 of them -- two for her baby dolls and one for Felicity - her American Girl doll.
She's started on one for herself -- using two different colors -- it's turning out really neat. Love how "delicate" the thinner (but still very soft) yarn looks and especially like the two different colors take on it. I'll be sure to post it when she gets it done.