Cutie Mark Crusaders
The three fillies founded the club in the episode, Call of the Cutie, after they bond over their collective lack of cutie marks. Since Cutie Marks only appear when the pony in question have discovered their unique talent, the three made a plan to work to discover their talents. This usually takes the form of the three trying every activity they possibly can, without much success. However, each is implied to have a unique talent that they are simply unaware of yet. Apple Bloom appears to be talented at construction and design, Sweetie Belle appears to be a talented singer, and Scootaloo is good at tasks that require agility and coordination. In the episode One Bad Apple, they add a fourth member, Apple Bloom's cousin Babs Seed, who promises to start a branch in Manehattan, where she resides.