A long, long time ago, when G4 first started, Hasbro showed off some “crystal” keychains of Pinkie, Rainbow, Rarity and Applejack at the NYC Toy Fair. RD and PP had a very limited release in stores, with AJ and Rarity never making it to stores.
Now all four keychains are available as part of the Rainbow Power selection of toys. They’re found on shelves in places like Toys R Us, with the older ones for sale at resell stores like 5 Below.
Thanks to Adventures in Ponyville for sending this in.