Not my strongest area of preference, but I'll share my find. Arm growth of female villian in episode 34 of the this series. It is sustained throughout most of the episode. It is a very small find and I didnt really want to make a whole thread for it, but there isn't a general findings thread here like in some of the other subforums.
http://kissanime.to/Anime/Sousei-no-...-034?id=132548