Horses (Shetland ponies), blue jays, sulphur-crested cockatoos, barn owls.
Roman, Norse/Viking, Eastern European (especially Baltic and Slavic), medieval Western European, Victorian England, Tsarist Russia, the Soviet Union, 50's-70's America.
Writing stories, writing descriptions, drawing, poetry, inventing fictional languages and cultures (worldbuilding), researching and subverting cliches, shapes, geometry, architecture, cultural/exotic fashion, researching behaviour.
Classical Western music, Jazz, Medieval violins, church choirs, (sometimes Dubstep, ogh!), Japanese music, Javanese music, composing music, singing, Arabian music (and melodies), *PIANO*, medieval European fiddles, pipe organs (like those in churches).
Subcultures/Fiction (other than MLP:FiM):
Lord of the Rings (especially the Quendi of the Silmarillion), Doctor Who, G-Mod, steampunk, Assassin's Creed, cyberpunk, The Chronicles of Narnia, The Mummy films, European medieval fantasy, science fiction, ANACHRONISM, Gulliver's Travels (especially Houyhnhnms), randomness.
Languages I'm interested in (not use every-day):
Russian, Manchu, Latvian, Classical Latin, Old English, Old Norse, Classical Greek, Lithuanian, Sanskrit, (occasionally) Old Chinese, Khalkha Mongolian,.
(also, outdated spellings are best)
conlangs, such as Quenya.
Mythology, video-games, outdated norms, speaking in a British accent, daydreaming, social life in regions or countries, constellations, cultural holidays and festivals (like Chinese New Yesr, Tanabata, and Japanese Matsuris).