Here are two of the best examples.
1. There is a painting called "Snow Angels" by Robert Duncan and the little girl in the painting looks a lot like Avery. My sister and dad told me about it. See for yourself:
2. There was a web video circulating about 18 months ago, which was then turned into a commercial, that so many people have said reminded them of Avery (besides the fact that the child is a boy, but Avery had boy hair for a long time when she was a tiny baby). The laugh and everything was dead on. Eerily so. I'm sure you've seen it, but it's really cute, so watch it again. I DARE YOU to try not to laugh. I remember the first time seeing it (pretty sure on Ellen?) and thinking "wow--that is AVERY!" But it wasn't...obviously... :)
(I tried to post the video here, but I'm not smart enough...sorry.)