Gap and Old Navy sell them.
check out GG in a pair of Baby Gap brand skinny jeans her godmother bought her for Christmas.and look, I found a mom blog with a bunch of commenters lamenting the "skinny" jeans for toddlers! Get over it people. I am in awe in the amount of simple stuff people can get indignant and "high horsey" about.
Mostly the comments people are telling me what a lunatic I am for not liking skinny jeans. Over time I have gotten more comments on that post than on almost anything else I have written. To me THAT'S funny.