Ponies (and horses by extension) usually travel this way.
What is walking?
This villain was very into equality.
Who is Starlight Glimmer?
This mane 6 pony is famous for her baked sweets
Who is Pinkie Pie?
This is the princess that was on another celestial body for a long while.
Who is Princess Luna?
This Mane Six pony despised books but learned to love them very much.
Who is Rainbow Dash?
Mane six often travelled to Canterlot and other places via this method of transportation.
What is train?
This mane six character was a vampire.
Who is Fluttershy?
This is a fruit that shares a name of one of the Mane Six's parents.
What is pear?
Twilight Sparkle was supposed to make this gift (presented by Spike) in the beginning of the show, but never did.
What is a teddy bear?
This is the name of an iconic place that was destroyed by Tirek.
What is Golden Oak Library?
This is a non-magical and non-pegasus pony that is frequently shown flying.
This villain was involved in a rescue mission of the Mane Six.
Who is Trixie?
This is a surprisingly popular filling in a fast food burger.
What is hay?
This relative of the Mane Six was directly involved in founding of the Ponyville.
Who is Granny Smith?
This pony was shown to adore books the most besides the main six.
Who is Moon Dancer?
Transformation into these species allowed main characters sea travel.
Who are seaponies?
This character was supposed to be a friend of a villain. Or so the villain thought.
Who is Tirek?
This is the thing that parasprites prefer to eat after Twilight's spell.
What is a everything?
This was the culprit in a series of seemingly horrifying events happening to main characters during an exploration of a historical place.
Who is Pinkie Pie?
This is an first and foremost an adventurer, an author of at least one very influential book that made lots of ponies fan of her.
Who is A. K. Yearling?
This method of transportation mentioned in the MLP:FIM was a pun meaning "painting of moving equines."
What is a horse drawn carriage?
These villains were the main antagonists in the anti-universe of the MLP comic book series.
Who are Mane Six?
These domestic non-sentient animals present in the MLP:FIM show are known to be bred for food and skin only in real life. The reason for their presence in the show is still uncertain.
What are pigs?
These creatures were seeding hatred but were banished a long time ago in the timeline of MLP:FIM.
Who are windigos?
This is the main publisher of My Little Pony: Friendship Is Magic comic book series.
What is IDW?