I think they should have an elder pony that hasn't got a cutie mark, that has given up on even trying to get one, and then the CMCs would go and try to help,without even asking(kinda like pinkie tried to forcefully befriend grumpy donkey) it would make a great episode
I agree that's a good idea! In general, the CMCs helping adult ponies is something we haven't seen much. I remember them helping Bulk Biceps once, but that's about it.