• accordions
• bees/beekeeping
• book cover art/old books
  • typography & type design
• disability issues
  • sanism, Deaf education, prosthetics/aids
• comic theory/history/printing
• edible plants of New England
• geocities era static websites
• languages
  • B/C level: english, french
  • A level: russian, toki pona, ASL
• movie practical effects/props
  • stop-motion puppets
• nuclear disasters/radiation
• robotics (my field of study)
• space/astronomy
  • mars
• text adventure/interactive fiction
• unusual or "useless" machines
  • rube goldberg machines, musical robots, kinetic art
• weird forms of transportation
• zombies

If you bring up any of these to me I will have a lot to say