General: cutie mark
The mark on the hip of a My Little Pony character. This mark reflects the main skill of the pony.
Just because you know it is there, doesn't mean it should be tagged. Only use this tag if the cutie mark is present and easily visible. Some ponies don't have their mark yet and as such will not have this tag.
Also, unlike 20pc, there is no need to tag the type of cutie mark a character has.