People can get pretty excited about boring, everyday products. Take pens: The subreddit r/Pens has nearly 60k subscribers, growing ~50% YoY. 

Pens are also a highly successful Kickstarter subgenre. Check out the following campaigns:

  • Polar ($643k+ raised): Modular pen made from magnets
  • Stilform INK ($497k+ raised): Magnetic fountain pen coated in titanium
  • WYN Pen 1.0 ($99k+ raised): Minimalist pen with an internal bronze refill