Reading (duh), writing (theoretically), pens, flags, music (alternative, electronic, and classical mostly. K- and J-pop also welcome), languages and scripts, trains, astronomy, anime, assorted fandoms.
I'm not entirely sure there was any rhyme or reason, to be honest. Lots of short skits. Even more songs. Just anything that piqued my interest but that I didn't want to watch right then, really.