The scene in which the troll picks up one of the rock ponies made by Pinkie and Rarity and calls it "George" is a commonly used allusion to the character Lennie in John Steinbeck's novella Of Mice and Men. On page 3, Pinkie Pie finds a skull and names it "Mr. Bones". The skull...
Shiina Mashiro (or is it Mashiro Shiina? I'm honestly not sure how that works) from Sakurasou no Pet na Kanojo, my number one favourite character outside of MLP (number two, if wewereto include the ponies!). She's just so cute and awesome!