My Little Pony Keychains My Little Pony key rings feature the sweet charming friends of Ponyville. Originally introduced in 1981, My Little Pony has become a popular toy and video line. The stories help kids learn about friendship through fun stories about the ponies. Each pony has her own colorful look, special personality and unique mark on her hindquarter. Collect all the My Little Pony keyrings to take along on your backpack or play your own imaginary adventures.