Thomas' Adventures of My Little Pony Friendship is Magic - The Crystalling is an another upcoming Thomas & Friends/My Little Pony: Friendship is Magic Crossover film to be created by 76859Thomas.
Twilight Sparkle and her friends are invited to the Crystal Empire to attend the Crystalling, a magical ceremony honoring the birth of Princess Cadance and Shining Armor's foal. Twilight brings her new pupil Starlight Glimmer to the empire to reconnect with Sunburst, her estranged childhood friend, as part of her first friendship lesson. Starlight, however, is anxious to keep Sunburst from learning of her past villainy and tries to avoid the reunion. The two eventually meet, and following an awkward conversation with him, Starlight assumes Sunburst to be a successful wizard who has moved on from their friendship. Meanwhile, Twilight is shocked to discover the foal is an alicorn filly with powerful, uncontrollable magic. The filly's cries shatter the Crystal Heart that protects the Empire, leaving the city exposed to a deadly snowstorm. The ponies desperately search for a spell to restore the Crystal Heart and save the Crystal Empire from the arctic snow. Starlight believes Sunburst is capable of such a feat, but when she goes to retrieve him, he despairingly admits he is not a powerful wizard as she believes. Starlight reveals her own past mistakes to him, and the two reconcile. Using the knowledge he gained from his schooling, Sunburst helps Starlight and the princesses perform the Crystalling, which repairs the heart, staves off the storm, and brings the alicorn filly's magic under control. Shining Armor and Cadance name their daughter Flurry Heart to mark the occasion and choose Sunburst as her crystaller.
- Annoying Orange, Pear, Apple, Passion Fruit, Midget Apple, Marshmallow, Grapefruit, Grandpa Lemon, Nerville, Princess Sapphire, Choppy, Prince Frank, Ash Ketchum, Pikachu, Misty, Togepi, Brock, Sora, Riku, Kairi, Mickey Mouse, Pluto, Donald Duck, Goofy, Mushu, Cri-Kee, Wreck-It Ralph, Vanellope von Schweetz, Fix-It Felix, Jr., Princess Anna, Elsa the Snow Queen, Olaf, Kristoff and Sven are guest starring in this film.
- Flurry Heart became a new member of Thomas' Adventure team in the end.