I like to think that Mimikyu uses the other plushes not only for Camouflage, but for repairing its disguise. Please do not repost.
As a sign of how morbid my mind is, I thought Mimikyu was eating a Rattata when I first saw the pic. I like the explanation of self repair though.
@Andrewski2000 Yes, I mean on other sites. I posted it to Deviantart, Tumblr, and a few other places already myself.