Interactive Home Cave Decorations
It would be neat to have interactive home cave decorations, that have a purpose. These would probably be limited to 1 in each cave or room.
Nest - allows the player to change their growth stage to any they have previously achieved. This would allow adult dinos to go back to being small, either for replayability or roleplaying.
Shedding rock/tree - allows the player to speed up the shedding process of getting a new skin, alongside an animation of rubbing on the rock.
There are lots of ideas that could be implemented in this way, and I think it could really add to homecaves and make them more interesting to play in.