Katie's socks are done! Here they are modeled by a very helpful little boy. They are a little hard to get on and I hope they are not too small for her. I think the tightness is a result of the construction, not the end fit. I tried to make these a little bigger than the foot I measured last month, to allow for growth spurts . We shall see.
I've got plenty more of this yarn left - probably enough to make her another pair of socks when she gets older. Or... how cute is this hat made of sock yarn? (sorry, it's a Ravelry link)