I think this
https://www.youtube.com/watch?v=pvQWGXNbxCM would be fun to make a ponyfied version later on in our newest rp or just rp it out without ponyfing it in the rp.
Also on the sunset rp perhaps we can have a mana ailment that caused Sunset to get younger something thats not simple or easy to fix aswell as the recommended aspect to not do anything and let it take the course which tends to mean just growing up again at the same rate as a normal pony